Dive sites, seasons and marine life — researched, mapped, planned.
Menu
Destinations Dive Sites Marine Life Wrecks News
Plan a trip Trip planner When to dive Cost calculator Comparisons Marine-life calendar Water temperature Liveaboards Operators & resorts Marine parks Hyperbaric chambers World map
Regions Australia, New Zealand & East AsiaCaribbean & Western AtlanticEurope, Atlantic & MediterraneanIndian Ocean & East AfricaPacific Islands & MicronesiaRed Sea & Middle EastSoutheast Asia & Coral TriangleThe Americas & Eastern Pacific Countries
Learn & Tools All guides Certifications Gear guides Videos Ask the Data AI Agents API
About About us Methodology Disclaimer Contact
Your view
★ Saved

Your starred destinations, sites and species — stored in this browser.

API GATEWAY

Free read-only JSON access to the atlas's cached data.

Dark mode

🧭 Guided View
New to diving — depths, currents, certification levels? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the difference between a wall and a drift. Just the data — clean, fast and compact. This is the default view.

Interface language
Kichwani — illustrative image

Kichwani

Reef · Drift · Wall 6–30 m Beginner Zanzibar & Mnemba, Tanzania
AI-generated illustration
Documented Also known as: Kichwani Wall
Depth
6–30 m / 20–98 ft
Typical depth
16 m / 52 ft
Visibility
15–30 m / 49–98 ft
Water
25–29 °C / 77–84 °F
Current
Mild
Access
Boat
Best months
Jan, Feb, Jul, Aug, Sep, Oct, Dec
Recommended cert
Open Water
Typical dive
~50 min

Depth is the range from the top of the site to its usual maximum; "recommended cert" is the mainstream-agency level operators usually ask for, not a legal rule. Currents and visibility change daily — treat everything here as planning ranges.

Kichwani is the Mnemba conservation area's showpiece slope: a wall-like bank of hard coral that begins in three meters of turquoise and drops in steps toward thirty. Green turtles graze the shallows in numbers that make counting pointless, moray heads punctuate the coral, and the mid-slope is a continuous drift of snapper, fusiliers, and anthias. Deeper, whitetip reef sharks rest under overhangs and the coral thins to sponge and whip growth. Currents stay gentle enough for newer divers on most tides while the slope's depth range keeps experienced buddies interested — the balance that made Mnemba famous.

The moment you come for: Turtle-dense shallows; stepped coral slope from snorkel depth to 30 meters

Topography: Steep coral slope on Mnemba's southwestern side, shelving from lagoon sand into blue water

Current: Gentle tidal drift along the slope; occasionally brisker on spring tides.

Know before you splash

Hazards: Boat traffic in the busy season; mild drift separation risk for snorkelers.

Permits & rules: Conservation-area fee collected per visit through operators.

Conservation: Inside the Mnemba conservation area — entry fees fund patrols, and touching reef or turtles is prohibited.

Nitrox: Worth it here — profiles sit in the range where enriched air meaningfully extends no-stop time (with the training to use it).

Who you'll meet

For photographers

Wide angle: ★★★★☆ · Macro: ★★★☆☆ — editors' 1–5 rating of what this site gives each style of shooting

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