Rock Key
Protected Area
Rock Key Sanctuary Preserva Sanctuary
Why dive here
With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Rock Key offers some of Florida Keys's richest reef diving. Water ranges 19-32°C, warmest July, August, September.
We love Rock Key for its sheer convenience, and it’s always a solid bet for a relaxed dive out of Key West. It’s a shallow spot, usually around 8-10 meters, making it perfect for longer bottom times and a great choice if you’re newer to diving or just want an easy cruise. The reef here is mostly low-profile coral formations, plenty of finger coral and some nice pillar coral stands that always catch our eye. Look closely in the nooks and crannies – we often spot Yellowhead Jawfish peeking out of their burrows and American Pugnose Pipefish doing their best impression of seagrass blades. Schools of French Grunts and Schoolmasters drift lazily over the coral, a constant, shimmering curtain of silver. We’ve even had the occasional Sandbar Shark cruise by on deeper visits. Visibility is generally good, often 15-20 meters, though it can kick up a bit after a strong southerly blow. We’d suggest going early in the morning to beat the boat traffic; it tends to get a little busy later in the day. It’s a really pleasant dive, calm and full of those smaller, often overlooked details that make the Keys reefs so rewarding.
Nearest Dive Centres to Rock Key
Dive shops near Rock Key
Divers Direct
Lost Reef Adventures
Captain Hook
Finz Dive Center
Reviews for Rock Key
Conditions
Ocean conditions, forecast and tides for Rock Key
Rock Key Ocean Conditions
Monthly averages for Rock Key, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 8725520 - Fort Myers, FL (28km away)
October Averages
Sea Temperature
27°C
81°F · Range: 20.9–31.1°C
Air Temperature
26°C
79°F
Current Speed
0 cm/s
Direction: S (180°)
Salinity
35.98 PSU
Wind Speed
2.7 m/s
5.2 knots
Atmospheric Pressure
1014.5 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)
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