Cozumel
Cozumel is drift diving distilled: step off the boat and the current carries you along coral buttresses that rise from white sand like castle ramparts. Most of the famous sites sit inside the Arrecifes de Cozumel marine park on the island's sheltered leeward side, where visibility routinely stretches past 30 m. Short flights, simple logistics, and a large day-boat fleet make this the Caribbean's most dependable big-name dive destination.
ここでダイビングする理由
The Yucatan Current does the work here. It sweeps north along Cozumel's western shore, feeding the sponges and gorgonians that give reefs like Palancar and Colombia their improbable bulk, and it turns most dives into effortless one-way flights. The southern marine park holds the marquee terrain: coral pinnacles split by sand channels, swim-throughs stacked three deep, and walls that tilt from slope to sheer as you move south toward Punta Sur. Winter brings spotted eagle rays gliding along the drop-offs; year-round you can hunt for the splendid toadfish, a frilled, striped oddity found nowhere else on Earth. Between dives the island stays easy — moorings sit minutes apart, surface intervals happen on flat leeward water, and San Miguel's waterfront is a short taxi from the piers. Beginners log their first drift here, and veterans still queue for Devil's Throat.
月別
Diveable all year. December through May is dry and settled; June through November is hurricane season, with the highest risk in September and October. Winter cold fronts (nortes) occasionally close the harbor for a day or two.
| 月 | 水 | 透明度 | どんな体験か |
|---|---|---|---|
| January●●●●● | 25–27 °C / 77–81 °F | 20–40 m | Dry and settled; eagle rays on the walls. |
| February●●●●● | 25–27 °C / 77–81 °F | 20–40 m | Peak conditions; the odd norte blows through. |
| March●●●●● | 25–27 °C / 77–81 °F | 20–40 m | Calm and dry; eagle ray numbers taper. |
| April●●●●● | 26–28 °C / 79–82 °F | 20–40 m | Warm, flat seas and long sightlines. |
| May●●●●○ | 27–29 °C / 81–84 °F | 20–40 m | Hotter; first rains late in the month. |
| June●●●●○ | 27–29 °C / 81–84 °F | 20–40 m | Hurricane season opens; usually still fine. |
| July●●●●○ | 28–30 °C / 82–86 °F | 20–40 m | Warm water, busy boats, afternoon storms. |
| August●●●●○ | 28–30 °C / 82–86 °F | 20–40 m | Hot and humid; watch the tropics. |
| September●●●○○ | 28–30 °C / 82–86 °F | 15–35 m | Peak hurricane risk; quietest season. |
| October●●●○○ | 27–29 °C / 81–84 °F | 15–35 m | Storm risk lingers; rainier weeks. |
| November●●●●○ | 26–28 °C / 79–82 °F | 20–40 m | Drying out; first nortes arrive. |
| December●●●●● | 25–27 °C / 77–81 °F | 20–40 m | Dry season returns; holiday crowds build. |
月別データの信頼度: Documented. 行のない月は確認済みデータがありません。不確かな情報を掲載するより、空欄のままにすることを選んでいます。
ダイブサイト (7)
| サイト | タイプ | 水深 | レベル | アクセス | |
|---|---|---|---|---|---|
| C-53 Felipe Xicotencatl Upright intact hull, guided interior corridors, glassy sweepers, easy depth… | Wreck | 15–25 m | Intermediate | Boat | |
| Colombia Wall Skyscraper pinnacles, ravine swim-throughs, turtles and eagle rays… | Wall | 12–40 m | Intermediate | Boat | |
| Palancar Gardens Ten-meter coral towers, easy warm-up drift, turtles and angelfish, sunlit… | Reef | 6–25 m | Beginner | Boat | |
| Paradise Reef Splendid toadfish sightings, night diving minutes from town, octopus and… | Reef | 5–14 m | Beginner | Boat | |
| Paso del Cedral Dense snapper and grunt schools, nurse sharks under ledges, lively shallow… | Reef | 10–20 m | Intermediate | Boat | |
| Punta Sur — Devil's Throat The tunnel exit at 40 m, cathedral-like passages, black coral, big-animal… | Wall | 15–40 m | Advanced | Boat | |
| Santa Rosa Wall Sweeping wall drift, swim-through tunnels, barrel sponges, winter eagle… | Wall | 12–40 m | Intermediate | Boat |
計画できる海洋生物との出会い
Atlantic Tarpon
Christmas Tree Worm
Garden Eel
Great Barracuda
Hawksbill Turtle
Lionfish
Nurse Shark
Porcupinefish
Spotted Eagle Ray
Splendid toadfish peering from ledges, spotted eagle rays December through March, hawksbill and green turtles, nurse sharks resting under coral heads, big barracuda, and dense schools of grunts and snappers over the buttresses.
このエリアの沈船
C-53 Felipe Xicoténcatl
アクセスと宿泊
アクセス: Direct flights reach CZM from several US hubs; the budget route is flying to Cancun, bus to Playa del Carmen, then the 45-minute passenger ferry. Dive boats load at piers along the west coast.
宿泊先: San Miguel town puts restaurants and the ferry at your door; hotels strung south along the coastal road sit closer to the marine-park boat runs.
費用: Two-tank boat dives; the daily marine-park bracelet and gear rental cost extra. Many operators discount multi-day packages.
ダイビングの合間に: San Gervasio Maya ruins, the wild windward beaches, Punta Sur eco park, and easy mainland day trips to Tulum and Playa del Carmen.
安全性と実用情報
危険生物・リスク: Currents can accelerate without warning, especially at the southern sites, and buddy-team separations happen. Boat traffic is constant near the piers and over the shallow reefs.
Carry a surface marker buoy and know how to deploy it mid-water. Follow the drift briefing closely, and treat Devil's Throat and the deeper walls as advanced dives with firm depth plans.
最寄りの再圧タンク施設: Hyperbaric chambers operate on the island; emergencies route through your operator's plan, local EMS, and DAN, and availability changes.