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203 sites match.

SiteDestinationTypeDepthLevelCurrentBest
1,000 Steps Iconic staircase entry, star coral hills, dependable turtles BonaireBonaire Reef 5–30 m Beginner Mild
Abu Dabbab Grazing green turtles at close range; the chance of a dugong… Marsa Alam & the Deep SouthEgypt Shore 2–18 m Beginner None Mar, Apr, May, Jun, Sep, Oct, Nov
Agincourt Reefs Shelf-edge clarity on a day trip, Maori wrasse, varied moorings from… Cairns & the Ribbon ReefsAustralia Reef 5–25 m Beginner Mild Jun–Nov
Aliwal Baited Shark Dive Dozens of oceanic blacktips; seasonal tiger sharks at drifting close… Aliwal Shoal & UmkomaasSouth Africa Blue water 0–15 m Intermediate Moderate Dec–May
Angel City Textbook double reef, queen angelfish, sand-channel ray traffic BonaireBonaire Reef 5–27 m Beginner Mild
Anse Chastanet Reef Seahorses and frogfish on demand, shore access inside the reserve… Saint LuciaSaint Lucia Reef 2–40 m Beginner None
Aquarium (Mnemba) Fishbowl density at snorkel depth; superb for training and night dives Zanzibar & MnembaTanzania Reef 4–18 m Beginner None Jan, Feb, Jul, Aug, Sep, Oct, Dec
Asho's Gap Manta cleaning station in easy depth, queuing reef sharks, tight… Ningaloo ReefAustralia Reef 6–15 m Beginner Mild Apr–Oct
Ave Maria Rocks Reliable turtles and resting whitetips in granite gullies SeychellesSeychelles Pinnacle 6–20 m Beginner Mild Mar, Apr, May, Oct, Nov
Baixa do Ambrosio Devil-ray trains at snorkel depth, passing loggerheads, easy profile… The AzoresPortugal Seamount 8–30 m Intermediate Moderate Jul–Sep
Banana Reef Classic overhang-and-canyon terrain; sweetlips schools; Napoleon… North & South Malé AtollsMaldives Reef 5–30 m Intermediate Moderate Dec–Apr
Bari Reef Record-setting fish diversity, effortless entry, superb night diving BonaireBonaire Reef 3–25 m Beginner None
Barracuda Lake A 38 °C thermocline you can feel like a wall, cathedral rock… CoronPhilippines Freshwater 3–35 m Intermediate None Nov–May
Bjarnagja Halocline light effects, sheer lava walls, a wilder alternative to… Silfra & IcelandIceland Shore 3–18 m Intermediate None May–Sep
Blue Cave The blue glow itself, glassy sweeper swarms, easy cape reef outside… Okinawa & the Kerama IslandsJapan Cave 2–25 m Beginner Mild Apr, May, Jun, Oct, Nov
Blue Channel Coral arches and cavelets, dense overhang life, first-rate night… RoatánHonduras Channel 5–15 m Beginner Mild Mar–Aug
Blue Hole The archway exit into blue, Azure Window boulder field, chimney… Malta & GozoMalta Blue hole 5–40 m Intermediate Mild May–Oct
Blue Hole The Bells chimney entry; the saddle crossing into blue light… DahabEgypt Blue hole ~6 m Intermediate None Apr, May, Jun, Sep, Oct, Nov
Blue Lagoon Blacktip reef sharks in gin-clear shallows; the aquamarine pool and… RangiroaFrench Polynesia Reef 1–5 m Beginner Mild
Blue Lagoon (Padang Bai) Leaf scorpionfish and frogfish density; easy conditions with real… Bali & Nusa PenidaIndonesia Reef 3–20 m Beginner Mild Apr–Nov
Blue Maomao Arch Wall-to-wall blue maomao, cathedral light through the arch, easy depth Poor Knights IslandsNew Zealand Reef 3–15 m Beginner Mild Feb–Jun
Bonegi I (Hirokawa Maru) A shore-entry WWII transport; coral-covered upper hull rich in fish… Solomon IslandsSolomon Islands Wreck 3–55 m Intermediate Mild
Boo Windows The window swim-throughs; soft-coral walls; pygmy seahorses and… Raja AmpatIndonesia Reef 3–30 m Intermediate Moderate Oct–Apr
CJ's Drop Off Chimney swim-throughs opening onto the wall, sharp shelf-to-abyss… UtilaHonduras Wall 5–40 m Intermediate Mild Mar, Apr, May, Aug, Sep
Cabo Douglas Marine iguanas grazing underwater, flightless cormorants hunting, sea… Galápagos IslandsEcuador Shore 3–15 m Intermediate Mild
Cabo Pulmo Reef The bigeye jack tornado, bull sharks over the sand, a protected reef… Sea of Cortez & Cabo PulmoMexico Reef 5–18 m Beginner Mild Jul–Nov
Carwash Underwater lily garden, amber tannic light in summer, easy cavern… Riviera Maya & the CenotesMexico Cenote 3–15 m Beginner None Nov–Apr
Casa Cenote Mangrove-lined channel, shimmering halocline, juvenile tarpon, easy… Riviera Maya & the CenotesMexico Cenote 2–8 m Beginner Mild Nov–May
Casino Point Dive Park (Catalina) Stairway-entry kelp forest, fearless garibaldi, protected lobster… California Channel IslandsUnited States Kelp forest 5–28 m Beginner None
Cathedral Cove (Anacapa Island) Sunlit kelp columns, tame reserve-zone marine life, sea lion and seal… California Channel IslandsUnited States Kelp forest 5–18 m Beginner Mild
Cedar Pride The swim-through beneath the hull; soft-coral growth on masts and… AqabaJordan Wreck 8–26 m Intermediate Mild Apr, May, Jun, Sep, Oct, Nov
Chaikou Healthy branching-coral thickets, hawksbill encounters, easy… Green IslandTaiwan Reef 3–20 m Beginner Mild Apr–Sep
Challenger Bay Trevally hunting in torch beams at night, garden eel flats, relaxed… Cairns & the Ribbon ReefsAustralia Reef 5–18 m Beginner Mild Jun–Nov
Champagne Reef Swimming through volcanic bubble streams, warm vents, seahorse… DominicaDominica Reef 3–15 m Beginner None
Chapel Point (Apo Island) Unbroken hard-coral fields, point-blank turtles, the gentle half of… Dumaguete, Dauin & Apo IslandPhilippines Reef 3–25 m Beginner Mild Mar–Jun
Chole Bay All-weather lagoon diving; seagrass-and-coral mosaic full of… Mafia IslandTanzania Reef 3–18 m Beginner Mild Jul–Feb
Christ of the Abyss The famous statue, easy depths, snorkel-friendly coral heads Florida KeysUnited States Reef 3–9 m Beginner Mild
Cindy's Reef Shallow, sunlit coral gardens; anemonefish and sea kraits at close… Espiritu SantoVanuatu Reef 3–18 m Beginner Mild
Cirkewwa Arch & Reef The arch, cavern light, resident octopus and morays, hub for two… Malta & GozoMalta Reef 5–36 m Beginner Mild May–Oct
Clown Valley An anemone carpet of absurd extent; anemonefish in their hundreds; a… AlorIndonesia Reef 5–25 m Intermediate Moderate Apr–Nov
Cod Hole Face-to-face potato cod, regulated feeding ritual, Maori wrasse… Cairns & the Ribbon ReefsAustralia Reef 10–28 m Beginner Moderate Jun–Nov
Constellation & Montana Two eras of wrecks in one swim, hardened cement cargo, The Deep… BermudaBermuda Wreck 6–9 m Beginner Mild May–Oct
Coral Gardens Sprawling healthy coral fields under Gros Piton, easy atmospheric… Saint LuciaSaint Lucia Reef 5–25 m Beginner Mild
Cornucopia Tiered overhangs of soft coral; pygmy seahorses in the fan band; long… WakatobiIndonesia Wall 3–40 m Beginner Mild Mar–Nov
Cristobal Colon Vast scattered liner wreckage, shallow bright conditions, machinery… BermudaBermuda Wreck 5–17 m Beginner Mild May–Oct
Crystal Bay Seasonal ocean sunfish at cleaning stations; cold, clear upwelling… Bali & Nusa PenidaIndonesia Reef 5–30 m Advanced Strong Jul–Oct
Dabaisha Turtle traffic on a clean slope, livelier current-fed corner… Green IslandTaiwan Reef 4–25 m Beginner Moderate Apr–Sep
Davidsgja Uncrowded rift diving, resident brown trout, open-lake atmosphere Silfra & IcelandIceland Freshwater 3–21 m Intermediate None Jun–Sep
Deacon's Reef Jungle-to-reef scenery in one frame; healthy hard-coral shallows… Milne BayPapua New Guinea Reef 3–25 m Beginner Mild
Dos Ojos Twin sunlit pools, Barbie and Bat Cave guideline circuits, dense… Riviera Maya & the CenotesMexico Cenote 3–10 m Beginner None Apr–Aug
Drop Off A 600 m wall starting at the beach, constant turtle traffic, the… Sipadan & MabulMalaysia Wall 2–40 m Intermediate Mild Apr–Sep
East London & the Southern Start First action of the season; city logistics on a wilderness event The Sardine Run (Wild Coast)South Africa Blue water 0–25 m Advanced Strong May–Jun
Eden Rock & Devil's Grotto Tarpon gliding through silverside clouds (late summer), sunbeam… Grand CaymanCayman Islands Shore 4–14 m Beginner None Jun–Sep
Edithburgh Jetty Blue-ringed octopus and anglerfish at night, leafy seadragons… South AustraliaAustralia Artificial reef 3–8 m Beginner None Mar–Aug
Eel Garden The garden-eel colony at full extension; relaxed second-dive pace… DahabEgypt Shore 5–20 m Beginner Mild Apr, May, Jun, Sep, Oct, Nov
El Cabron Dense fish schools, lava arches and caves, winter angelshark… Canary IslandsSpain Reef 5–30 m Intermediate Mild May–Nov
El Puertito Green turtle encounters when luck cooperates, calm shallow water… Canary IslandsSpain Shore 3–12 m Beginner None May–Nov
Electric Beach Fish blizzards in the warm outflow; frequent spinner dolphin flybys… OʻahuUnited States Shore 3–12 m Intermediate Moderate
Els Tascons Grouper encounters at close range, varied easy topography, macro-rich… Medes IslandsSpain Reef 5–35 m Beginner Mild May–Oct
Five Caves (Mākena) Sleeping whitetips in the caverns; turtles at cleaning ledges; a… Maui & MolokiniUnited States Reef 5–14 m Intermediate Mild
Flamingo Bay Dense soft-coral color, seahorse hunting, gentle multi-level profile GrenadaGrenada Reef 6–25 m Beginner Mild
Flynn Reef Reliable day-trip coral gardens, giant clams, turtles, easy… Cairns & the Ribbon ReefsAustralia Reef 5–25 m Beginner Mild Jun–Nov
Fukui Point The giant-clam row; terraces of garden eels and gobies; relaxed… Bunaken & ManadoIndonesia Reef 5–30 m Beginner Mild Mar–Oct
Fury Shoals Sha'ab Claudio's sunlit caverns; cottage-sized hard-coral heads… Marsa Alam & the Deep SouthEgypt Reef 4–30 m Intermediate Mild Mar, Apr, May, Jun, Sep, Oct, Nov
Futo Squid egg beds in early summer, resident frogfish and octopus, calm… Izu PeninsulaJapan Reef 3–25 m Beginner Mild Sep–Dec
Garajau Marine Reserve Fearless dusky groupers, volcanic slopes, reliable shelter on the… MadeiraPortugal Reef 6–40 m Beginner Mild Jun–Oct
Garden Eel Cove (Manta Night Dive) Barrel-rolling reef mantas centimeters overhead; known individuals… Kona, HawaiʻiUnited States Reef 5–14 m Beginner Mild
Garden of Eden Soft-coral color on giant blocks; table-coral terraces; reliable… Daymaniyat IslandsOman Reef 6–25 m Beginner Mild Feb, Mar, Apr, Sep, Oct, Nov
Gladden Spit Whale sharks feeding on snapper spawn, massed spawning aggregations… Belize Barrier ReefBelize Blue water 10–30 m Advanced Moderate Mar–Jun
Gordon Reef The Loullia standing on the reef; garden-eel plains; easy plateau… Sharm El Sheikh & Ras MohammedEgypt Reef 3–24 m Beginner Mild Apr, May, Jun, Sep, Oct, Nov
Granito de Oro Whitetips by the dozen in the shallows, turtles at close range, a… CoibaPanama Reef 3–18 m Beginner Mild
Great Wall (Bloody Bay) A sheer face beginning at 6 m, sponge-packed vertical terrain, wall… Little CaymanCayman Islands Wall 5–40 m Intermediate Mild Apr–Aug
Green Bay Easy conditions, statue cluster, octopus and turtle possibilities on… Larnaca & the ZenobiaCyprus Shore 2–12 m Beginner None May–Nov
Half Moon Caye Wall Garden-eel flats, a sheer sponge-clad wall, eagle rays and turtles… Belize Barrier ReefBelize Wall 8–40 m Intermediate Mild Feb–Jun
Hanifaru Bay Mass manta feeding events — chain and cyclone feeding; occasional… Baa Atoll & Hanifaru BayMaldives Channel Beginner Mild Jun–Nov
Hatta Reef Steep walls with heavyweight fish life; bumphead squads; realistic… Banda Sea & AmbonIndonesia Wall 3–40 m Intermediate Moderate Mar, Apr, Sep, Oct, Nov
Hayut Run Conveyor-belt drifting over turtle gardens; napping zebra sharks; a… Daymaniyat IslandsOman Reef 5–20 m Beginner Mild Feb, Mar, Apr, Sep, Oct, Nov
Hol Chan Cut Fearless big groupers and morays, nurse sharks and rays… Belize Barrier ReefBelize Channel 3–9 m Beginner Moderate Feb–May
Ilheu de Vila Franca Volcanic crater lagoon, easy reef walls, reliable summer conditions The AzoresPortugal Reef 3–25 m Beginner Mild Jun–Sep
Inland Sea Tunnel The 80 m tunnel, the blue exit frame, big walls beyond the cliff Malta & GozoMalta Cave 2–26 m Intermediate Mild May–Oct
Jackson Reef Summer hammerhead drops off the north point; gorgonian-covered walls… Sharm El Sheikh & Ras MohammedEgypt Reef 3–40 m Intermediate Strong May–Oct
Japanese Gardens First-dive calm, healthy shallow coral, turtle flybys through… Koh TaoThailand Reef 2–16 m Beginner None Feb–Sep
Japanese Gardens Terraced hard-coral cover at its best in Jordan; easy depths for… AqabaJordan Reef 3–30 m Beginner Mild Apr, May, Jun, Sep, Oct, Nov
Jellyfish Lake The midday migration, when the swarm concentrates in sunlit water… PalauPalau Freshwater 0–5 m Beginner None
Kalanggaman Island Best visibility in the area, twin walls off a photogenic sandbar… MalapascuaPhilippines Wall 5–40 m Intermediate Moderate Feb–Jun
Karpata Steep sculpted drop-off, embedded historic anchors, standout… BonaireBonaire Reef 5–35 m Intermediate Mild
Kealakekua Bay Reserve-quality coral and clarity; history at the Cook monument… Kona, HawaiʻiUnited States Reef 3–30 m Beginner Mild
Kichwani Turtle-dense shallows; stepped coral slope from snorkel depth to 30… Zanzibar & MnembaTanzania Reef 6–30 m Beginner Mild Jan, Feb, Jul, Aug, Sep, Oct, Dec
Kicker Rock (Leon Dormido) Sharks transiting the channel, sheer walls, snorkeling with sea lions… Galápagos IslandsEcuador Channel 5–30 m Intermediate Moderate
Kilindoni Whale Shark Grounds Surface-feeding resident juvenile whale sharks, met on snorkel Mafia IslandTanzania Blue water 0–10 m Beginner Mild Oct–Feb
L'Ilot Glassfish-stuffed crevices; gorgonian color; superb night diving SeychellesSeychelles Pinnacle 5–22 m Beginner Moderate Mar, Apr, May, Oct, Nov
La Reina (Cerralvo Island) Occasional returning mantas, quieter sea lions, big morays in the… Sea of Cortez & Cabo PulmoMexico Reef 5–25 m Intermediate Moderate Aug–Nov
Lava Flow Record-pace coral regrowth on young lava; unbroken table-coral… Banda Sea & AmbonIndonesia Reef 3–30 m Beginner Mild Mar, Apr, Sep, Oct, Nov
Lekuan Walls Turtles at close range in quantity; vertical drop-offs from snorkel… Bunaken & ManadoIndonesia Wall 3–40 m Beginner Mild Mar–Oct
Lighthouse Bommie Dwarf minke whale encounters in June-July, olive sea snakes, resident… Cairns & the Ribbon ReefsAustralia Pinnacle 6–30 m Intermediate Mild Jun, Jul, Sep, Oct, Nov
Lighthouse Reef Night dives with Spanish dancers and hunting lionfish; effortless… DahabEgypt Shore 3–25 m Beginner None Mar, Apr, May, Jun, Sep, Oct, Nov
Lodestone Reef Relaxed gardens near Townsville, bommie corridors, dependable turtles… Townsville & the YongalaAustralia Reef 5–20 m Beginner Mild Aug–Nov
Looe Key Reliable reef sharks, tall coral spurs, joint snorkel-and-dive appeal Florida KeysUnited States Reef 2–12 m Beginner Mild
Los Islotes Sea lion pups at play, the swim-through arch, an all-levels profile… Sea of Cortez & Cabo PulmoMexico Reef 3–15 m Beginner Mild
MOUA Coral Greenhouse Underwater sculpture pavilion, growing coral transplants, fish life… Townsville & the YongalaAustralia Artificial reef 10–18 m Beginner Mild Aug–Nov
MUSA — Manchones The coral-crusted crowd of statues, easy depth, turtles in the… Isla Mujeres & CancúnMexico Artificial reef 6–10 m Beginner Mild Dec–May
MUSA — Punta Nizuc Snorkel-depth sculptures, family-friendly museum visit, fish shelters… Isla Mujeres & CancúnMexico Artificial reef 2–4 m Beginner Mild Dec–May
MUSAN — Museum of Underwater Sculpture A sculpted forest gaining reef life, shallow relaxed profile, unique… Larnaca & the ZenobiaCyprus Artificial reef 8–10 m Beginner Mild May–Nov
Maamigili Beyru Year-round juvenile whale sharks over an easy drift reef Ari AtollMaldives Reef 5–30 m Beginner Mild Aug–Apr
Mala Wharf Turtle density under the fallen spans; frogfish and morays on the… Maui & MolokiniUnited States Artificial reef 3–12 m Beginner Mild
Mandolin Busy reef crest over a classic wall; hunting sea kraits; strong… Bunaken & ManadoIndonesia Wall 3–35 m Beginner Mild Mar–Oct
Manta Point (Karang Makassar) Chains of reef mantas; cleaning-station holds; an easy shallow drift… KomodoIndonesia Drift 5–15 m Beginner Moderate Dec–Jun
Manta Point (Lankan Reef) Queueing reef mantas at cleaning stations; close, calm passes over… North & South Malé AtollsMaldives Reef 8–25 m Beginner Mild May–Nov
Manta Point (Nusa Penida) Near-year-round reef mantas; surface feeding behavior; occasional… Bali & Nusa PenidaIndonesia Reef 5–20 m Beginner Mild
Mariner's Cave The vanishing-fog breathing of the chamber; surfacing in sealed… VavaʻuTonga Cave 0–12 m Intermediate None Jul–Oct
Marsa Shagra House Reef Unlimited shore diving on your own schedule; healthy walls minutes… Marsa Alam & the Deep SouthEgypt Shore 2–25 m Beginner Mild Mar, Apr, May, Jun, Sep, Oct, Nov
Masaplod Norte Sanctuary Fearless sanctuary fish schools, artificial-reef sweetlips stacks… Dumaguete, Dauin & Apo IslandPhilippines Reef 3–20 m Beginner Mild Mar, Apr, May, Jun, Oct, Nov
Mbotyi & Waterfall Bluff Low-traffic staging with the Waterfall Bluff backdrop; one-boat bait… The Sardine Run (Wild Coast)South Africa Blue water 0–25 m Advanced Strong Jun–Jul
Melissa's Garden Pristine hard-coral cover; blacktips over the plateau; pygmy… Raja AmpatIndonesia Reef 3–25 m Beginner Mild Oct–Apr
Menjangan Island Walls Serene, clear wall diving; turtles and gorgonian fans; national-park… Bali & Nusa PenidaIndonesia Wall 3–40 m Beginner Mild Apr–Nov
Mesharifa Feeding chains of reef mantas; surface encounters in warm, easy… Port Sudan & SanganebSudan Reef 2–15 m Beginner Mild Aug–Oct
Middle Arch Broad easy archway, crayfish and morays in the cracks, prime… Poor Knights IslandsNew Zealand Reef 5–24 m Beginner Mild Feb–Jun
Million Dollar Point Bulldozers and trucks stacked down the slope; coral colonizing… Espiritu SantoVanuatu Wreck 3–35 m Beginner Mild May–Oct
Mixing Bowl Two reef styles from one mooring, the sand amphitheater, jawfish and… Little CaymanCayman Islands Wall 5–35 m Beginner Mild Apr–Aug
Molasses Reef Textbook spur-and-groove, dense fish schools, turtles and rays on… Florida KeysUnited States Reef 5–15 m Beginner Mild
Molinere Underwater Sculpture Park Vicissitudes ring of figures, art dissolving into reef, easy shallow… GrenadaGrenada Artificial reef 3–9 m Beginner Mild
Molokini Inner Crater Routine 30-meter-plus visibility; endemic-rich, easygoing reef… Maui & MolokiniUnited States Reef 3–25 m Beginner Mild
Muiron Islands Soft-coral gutters, turtle traffic, manta flybys, few other boats Ningaloo ReefAustralia Reef 6–20 m Beginner Mild Apr–Oct
Nelivaru Thila Shallow, calm manta cleaning station suited to newer divers Baa Atoll & Hanifaru BayMaldives Pinnacle 8–25 m Beginner Mild Jun–Nov
Nishibama Kerama-blue visibility, near-guaranteed turtles, garden-eel meadows… Okinawa & the Kerama IslandsJapan Reef 5–25 m Beginner Mild Apr, May, Jun, Jul, Oct, Nov
North Rock The Atlantic's northernmost corals, cottage-sized heads, extravagant… BermudaBermuda Reef 5–14 m Beginner Mild May–Oct
Nosy Be Whale Shark Grounds Snorkel encounters with feeding juvenile whale sharks, mobulas… Nosy BeMadagascar Blue water 0–10 m Beginner Mild Sep–Dec
Nosy Tanikely Madagascar's most reliable reef — turtles, dense fish, easy conditions Nosy BeMadagascar Reef 2–18 m Beginner Mild Apr–Nov
Osezaki Muck diving with deep-sea surprises, dense macro on dark sand… Izu PeninsulaJapan Muck 3–40 m Beginner Mild Sep–Jan
Panagsama Reef (the Sardine Run) A permanent multimillion-fish bait ball, turtles in the mix, dawn… MoalboalPhilippines Reef 1–30 m Beginner Mild Dec–May
Paradise 2 (Mabul) Frogfish and ghost pipefish on demand, flamboyant cuttlefish, easy… Sipadan & MabulMalaysia Muck 3–18 m Beginner Mild Apr–Sep
Paradise Reef Splendid toadfish sightings, night diving minutes from town, octopus… CozumelMexico Reef 5–14 m Beginner Mild Nov–May
Pescador Island The Cathedral light funnel, wraparound wall diving, sharks and… MoalboalPhilippines Wall 3–40 m Intermediate Moderate Dec–May
Playa Chica Seahorses and garden eels, the Cathedral cavern, effortless logistics Canary IslandsSpain Shore 3–40 m Beginner Mild May–Nov
Playa Kalki Storybook coral terrain, calm clear water, easy cove entry CuraçaoCuraçao Reef 5–30 m Beginner Mild
Port St Johns Grounds The highest-probability staging area for full bait-ball events The Sardine Run (Wild Coast)South Africa Blue water 0–25 m Advanced Strong Jun–Jul
Precontinent II (Conshelf Two) The onion-dome hangar and its trapped-air mirror; Cousteau-era relics… Port Sudan & SanganebSudan Reef 9–30 m Intermediate Mild Nov–May
Prinz Eugen An essentially complete WWII heavy cruiser; torpedo tubes and… Bikini AtollMarshall Islands Wreck 0–35 m Advanced Mild
Pulau Ai Glass-clear wall diving; intact hard-coral shelf; easy profiles… Banda Sea & AmbonIndonesia Wall 3–40 m Beginner Mild Mar, Apr, Sep, Oct, Nov
Punta Vicente Roca Mola cleaning stations, turtle aggregations, red-lipped batfish… Galápagos IslandsEcuador Wall 5–30 m Intermediate Mild
Quarter Mile Reef Resting pregnant ragged-tooth sharks in summer at snorkelable depths Sodwana BaySouth Africa Reef 6–14 m Beginner Mild Dec–Mar
RMS Rhone Intact coral-sheathed bow section, giant propeller in the shallows… British Virgin IslandsBritish Virgin Islands Wreck 6–26 m Intermediate Mild
Rapid Bay Jetty Leafy seadragons at close range, overgrown pylon forest, long shallow… South AustraliaAustralia Artificial reef 4–10 m Beginner None Mar–Aug
Ras Abu Galum Untracked reef walls; the camel-train approach; grilled-fish surface… DahabEgypt Reef 5–30 m Intermediate Mild Apr, May, Jun, Sep, Oct, Nov
Ras Morovi Turtle-grazed coral gardens; boulder terraces on the point; the… Musandam PeninsulaOman Reef 5–25 m Intermediate Moderate Oct–Apr
Ras Um Sid The gorgonian forest; glassfish-filled overhangs; convenient depth… Sharm El Sheikh & Ras MohammedEgypt Reef 5–30 m Beginner Mild Apr, May, Jun, Sep, Oct, Nov
Rikoriko Cave Diving inside one of the world's great sea caves, deep-water species… Poor Knights IslandsNew Zealand Cave 5–22 m Intermediate None Feb–Jun
Roma Cabbage-coral crown; swirling anthias and fusilier lanes; easy spiral… WakatobiIndonesia Pinnacle 4–30 m Beginner Mild Mar–Nov
Sakatia Turtle Grounds Large grazing green turtles at snorkel depth, meters from shore Nosy BeMadagascar Shore 1–8 m Beginner Mild Apr–Nov
Salt Pier Encrusted pilings in shafted light, seahorse and frogfish hunting… BonaireBonaire Artificial reef 4–12 m Beginner Mild
Santa Barbara Island Sea Lion Rookery Pup swarms in the shallows, all-day bottom time, the archipelago's… California Channel IslandsUnited States Kelp forest 5–20 m Beginner Mild
Sataya Reef Large resting spinner pods in the lagoon; warden-managed encounters… Marsa Alam & the Deep SouthEgypt Reef 3–25 m Beginner Mild Mar, Apr, May, Jun, Sep, Oct
Scott's Head Pinnacle Soldierfish-packed swim-through, summit-to-depths pinnacle profile DominicaDominica Pinnacle 3–35 m Intermediate Mild
Sha'ab El Erg Wild bottlenose dolphin encounters on their terms; pinnacle gardens… Hurghada & El GounaEgypt Reef 3–22 m Beginner Mild Apr, May, Jun, Sep, Oct, Nov
Sha'ab Samadai Resting spinner dolphins met on their terms; cavern swim-throughs; a… Marsa Alam & the Deep SouthEgypt Reef 3–20 m Beginner Mild Mar, Apr, May, Sep, Oct, Nov
Shark Island Soft-coral variety, sea kraits and rays, an honest name-myth debunking Koh TaoThailand Reef 4–24 m Intermediate Moderate Mar–Sep
Sharks Cove Lava tubes and skylights; tame reserve fish life; the North Shore in… OʻahuUnited States Shore 2–14 m Beginner Mild May–Sep
Shilang Walk-in Kuroshio clarity, anemone cities, the fallen Big Mushroom… Green IslandTaiwan Reef 3–25 m Beginner Mild Apr–Sep
Siaba Besar Green turtles in bulk; relaxed shallow profiles; surprisingly good… KomodoIndonesia Reef 3–20 m Beginner Mild Apr–Nov
Siete Pecados Thriving shallow coral, giant clams and turtles, the area's best… CoronPhilippines Reef 1–12 m Beginner Mild Nov–Apr
Silfra Fissure Swimming a tectonic boundary, visibility beyond 80 m, drinkable… Silfra & IcelandIceland Freshwater 2–18 m Intermediate Mild May–Sep
Skjervoy Orca Grounds Carousel-feeding orcas, lunge-feeding humpbacks, polar-night light —… Arctic NorwayNorway Blue water 0–5 m Advanced Mild Nov–Jan
St John's Caves Cathedral light shafts in shallow tunnels; low-stress cavern… Brothers, Daedalus & St John'sEgypt Reef 4–18 m Intermediate Mild Mar, Apr, May, Jun, Sep, Oct
Stingray City Dozens of tame southern stingrays at arm's length, four-meter depth… Grand CaymanCayman Islands Channel 3–4 m Beginner Mild Dec–May
Sugar Wreck Dense fish swarms on shallow wreckage, superb night and snorkel site Tiger Beach & Grand BahamaThe Bahamas Wreck 4–6 m Beginner Mild
Sunabe Seawall Car-to-water shore diving, deep nudibranch catalog, easy productive… Okinawa & the Kerama IslandsJapan Reef 3–15 m Beginner Mild Apr, May, Jun, Oct, Nov
Susan's Reef Red whip-coral thickets; anthias clouds over the ridge; classic… Kimbe BayPapua New Guinea Reef 5–25 m Beginner Mild
Swallows Cave The baitfish vortex in blue light; the vaulted chamber and arch… VavaʻuTonga Cave 0–18 m Beginner None Jul–Oct
Ted's Point Minutes from the harbor, relaxed profiles at every level, regular… UtilaHonduras Reef 6–30 m Beginner Mild Mar, Apr, May, Aug, Sep
Tetamanu Jetty Blacktips beneath your fins from the first minute; pink-sand shallows… FakaravaFrench Polynesia Reef 1–10 m Beginner Mild
The Afuera The world's largest documented whale-shark aggregation, surface… Isla Mujeres & CancúnMexico Blue water Beginner Mild Jun–Aug
The Aquarium Zebra sharks at rest; fish density that earns the name; seasonal… Daymaniyat IslandsOman Reef 6–22 m Beginner Mild Feb, Mar, Apr, Sep, Oct, Nov
The Aquarium Tame, dense reef-fish crowds; blacktips over white sand; ideal… RangiroaFrench Polynesia Reef 2–12 m Beginner Mild
The Aquarium (Long Caye) Fish density on the reef top, streaming creole wrasse, easy profile… Belize Barrier ReefBelize Reef 8–30 m Beginner Mild Feb–Jun
The Bait Ball The full predation event — dolphins, sharks, gannets, and whales on… The Sardine Run (Wild Coast)South Africa Blue water 0–20 m Advanced Moderate Jun–Jul
The Caves Torchlit caverns full of sweepers; shaded-wall macro; a calm-weather… Musandam PeninsulaOman Reef 5–20 m Beginner Mild Oct–Apr
The Caves at Norman Island Swimmable treasure-lore caves, sweeper-filled inner chambers, easy… British Virgin IslandsBritish Virgin Islands Cave 2–12 m Beginner None
The Indians Pinnacle canyons and tunnel, dense tame fish life, diver-snorkeler… British Virgin IslandsBritish Virgin Islands Pinnacle 3–15 m Beginner Mild
The Islands Hard-coral architecture unmatched on this coast; enclosed sand… DahabEgypt Reef 4–16 m Beginner None Apr, May, Jun, Sep, Oct, Nov
The Passage River-style drift beneath jungle walls; mangrove-and-soft-coral… Raja AmpatIndonesia Channel 3–18 m Advanced Strong Oct–Apr
The Tank A coral-covered tank at snorkel depth; effortless conditions; the… AqabaJordan Artificial reef 4–7 m Beginner None Apr, May, Jun, Sep, Oct, Nov
The Tugboat Sun-drenched photogenic tug at five meters, bonus wall dive alongside CuraçaoCuraçao Wreck 4–30 m Beginner None
Three Sisters Ray-and-shark sand gullies between the outcrops; a naturally… Daymaniyat IslandsOman Reef 5–25 m Beginner Mild Feb, Mar, Apr, Sep, Oct, Nov
Thunderdome Game-show ruin turned fish haven, shallow bright conditions Turks and CaicosTurks and Caicos Islands Artificial reef 3–8 m Beginner None
Tongo Point Crevice-riddled wall, sanctuary calm, macro finds between the fans MoalboalPhilippines Wall 3–35 m Beginner Mild Dec–May
Toucari Caves Daylight lava tunnels, ceilings packed with sweepers and soldierfish DominicaDominica Cave 4–18 m Beginner None
Tulamben Drop-Off Sponge-and-fan wall from shore; pygmy seahorses; rich and easy night… Bali & Nusa PenidaIndonesia Wall 3–40 m Beginner Mild Apr–Nov
Tumakohua Pass The gray reef shark wall; the grouper aggregation and night hunts… FakaravaFrench Polynesia Channel 5–35 m Intermediate Strong May–Oct
Turquoise Bay World-class drift snorkel from the sand, turtles and rays in a… Ningaloo ReefAustralia Reef 1–6 m Beginner Moderate Mar–Nov
Twin Rocks Anemone cities, confiding schools, turtles at sanctuary ease AnilaoPhilippines Reef 3–20 m Beginner Mild Nov–May
Two Mile Reef Rich coral cover and huge variety across named sections; sociable… Sodwana BaySouth Africa Reef 9–34 m Beginner Mild Apr–Sep
Two Step (Hōnaunau Bay) Effortless lava-shelf entry; superb shallow coral; turtles and… Kona, HawaiʻiUnited States Shore 3–25 m Beginner Mild
USAT Liberty Wreck Dawn bumphead parade; coral-encrusted swim-throughs; shore access… Bali & Nusa PenidaIndonesia Wreck 5–30 m Beginner Mild Apr–Nov
USS Kittiwake Intact rescue-ship spaces at kind depths, tilted corridors and the… Grand CaymanCayman Islands Wreck 5–20 m Intermediate Mild Dec–May
Umbria Holds stacked with wartime munitions; the Fiat cars and ship's… Port Sudan & SanganebSudan Wreck 5–36 m Intermediate Mild Nov–May
Wakatobi House Reef World-class shore-access wall; dusk squid and turtle-filled seagrass… WakatobiIndonesia Wall 1–40 m Beginner Mild Mar–Nov
Wattabomi Relaxed sand-and-bommie drift with near-guaranteed turtles Zanzibar & MnembaTanzania Reef 5–25 m Beginner Mild Jan, Feb, Jul, Aug, Sep, Oct, Dec
West End Wall Reliable turtles, sponge-loaded wall face, effortless logistics from… RoatánHonduras Wall 10–35 m Intermediate Mild Mar–Aug
Wheeler Reef Compact all-in-one reef, anemone bommies, friendly conditions for… Townsville & the YongalaAustralia Reef 5–22 m Beginner Mild Aug–Nov
White Beach WWII vehicles fusing into reef; frogfish and octopus in the… Solomon IslandsSolomon Islands Muck 3–30 m Beginner Mild
White Beach Softest entry in town, turtle traffic, dependable night diving MoalboalPhilippines Reef 2–25 m Beginner Mild Dec–May
White Rock Turtles and rays in easy depths, the island's classic night dive… Koh TaoThailand Reef 3–22 m Beginner Mild Feb–Sep
Whyalla Cuttlefish Coast Massed giant cuttlefish courtship, color displays at arm's length… South AustraliaAustralia Reef 2–6 m Beginner Mild May–Aug

Site data is compiled from the sources on each site's own page and carries confidence labels; depths and conditions are planning ranges, not survey data.

Australia, New Zealand & East Asia

Cairns & the Ribbon ReefsNingaloo ReefCoral Sea & Osprey ReefOkinawa & the Kerama IslandsPoor Knights IslandsTownsville & the YongalaGreen IslandIzu Peninsula

Caribbean & Western Atlantic

BonaireCozumelRiviera Maya & the CenotesBelize Barrier ReefGrand CaymanIsla Mujeres & CancúnRoatánTiger Beach & Grand Bahama

Europe, Atlantic & Mediterranean

Malta & GozoSilfra & IcelandThe AzoresCanary IslandsLarnaca & the ZenobiaScapa FlowArctic NorwayMadeira

Indian Ocean & East Africa

North & South Malé AtollsAri AtollBaa Atoll & Hanifaru BayAliwal Shoal & UmkomaasMafia IslandMauritiusSeychellesSodwana Bay

Pacific Islands & Micronesia

PalauChuuk (Truk) LagoonFakaravaKona, HawaiʻiRangiroaTaveuni & Rainbow ReefBeqa Lagoon & Pacific HarbourEspiritu Santo

Red Sea & Middle East

Sharm El Sheikh & Ras MohammedBrothers, Daedalus & St John'sDahabHurghada & El GounaMarsa Alam & the Deep SouthAqabaDaymaniyat IslandsMusandam Peninsula

Southeast Asia & Coral Triangle

Bali & Nusa PenidaKomodoRaja AmpatSipadan & MabulAnilaoCoronKoh TaoLembeh Strait

The Americas & Eastern Pacific

Galápagos IslandsCocos IslandFlorida KeysSea of Cortez & Cabo PulmoSocorro & the RevillagigedosBritish ColumbiaCalifornia Channel IslandsCosta Rica Pacific Coast