Artificial reef
down to 15 m
Neptune Memorial Reef
An underwater memorial reef inspired by the Lost City of Atlantis, in about 15 m of water 3.25 miles east of Key Biscayne.
- Open Water
Diving in United States
11 documented dive sites, 5 of them for Open Water divers. Known for spinner shark, caribbean reef sharks and lemon shark.
Pick a month: the diving season, from published sources, and the typical weather.
Pick a month
Typical weather, not a forecast: averages for 2021–2025 (air, rain, wind) and 2023–2025 (sea), data from Open-Meteo (ERA5 / Copernicus, Météo-France). Covers an area of roughly 10 to 25 km around the destination.
Diving is year-round (DAN). Summer has the calmest seas and warmest water and is shown as best (May–Sep); goliath grouper spawning runs early Aug–Oct. Nov–Apr is shown as good, not off-season: cooler water (upper 60s–mid 70s °F), but it is shark season (spinner, lemon, bull, sandbar sharks) and, per Pura Vida, has the most dynamic fish life. There is no sourced information on hurricane-season disruption, so Sep/Oct are not downgraded on that basis.
From the easiest to the most demanding. Levels with a dashed outline are estimates we are still verifying.
Drift
down to 18 m
Miles of continuous coral ledges, undercuts and patch reefs at 13–18 m off the Breakers Hotel, drift-dived past turtles, rays and eels.
Drift
down to 28 m
A 6 m-high deep ledge from 21 to 28 m, drift-dived past schooling gamefish, goliath grouper, moray eels and soft corals.
When the big encounters happen, month by month.
| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spinner sharkSource: dan.org | ||||||||||||
| TurtlesSource: dan.org | ||||||||||||
| Goliath groupersSource: dan.org | ||||||||||||
| Lemon sharkSource: dan.org | ||||||||||||
| Sandbar sharkSource: dan.org | ||||||||||||
| Bull sharksSource: dan.org |
Spinner shark: Nov–Apr. Turtles: May–Jul. Goliath groupers: Aug–Oct. Lemon shark: Nov–Apr. Sandbar shark: Nov–Apr. Bull sharks: Nov–Apr
Also reported here, season not documented yet:
About this page
Seasons and marine life come from the sources below. Site levels and depths marked as estimated come from our original catalogue and are being checked one by one. Conditions change: always confirm with a local dive centre.
Your next dive is somewhere out there.
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