Devil's Den
Protected Area
Waccasassa Bay State Preserve
Why dive here
With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Devil's Den offers some of Florida Keys's richest cave diving. Water ranges 19-32°C, warmest July, August, September.
Devil's Den is an interesting change of pace from the usual reef dives in the Keys. We’re talking about a prehistoric spring, an underground cavern that opens up into cool, clear water. You drop in from an opening at the top, which lets in a surprising amount of light for a cave, illuminating the rock formations. It’s a pretty easy dive, mostly about buoyancy control as you explore the space. We’ve spotted the occasional Eastern Mosquitofish darting about, and rumor has it an Atlantic Ridley has been seen, though we haven't been so lucky yet. It's a solid pick for divers looking for something a bit different, a chance to explore a unique geological feature without the challenges of a full-on cave system.
Safety Notes
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Nearest Dive Centres to Devil's Den
Dive shops near Devil's Den
Blue Grotto Dive Resort
Scuba Monkey Dive Center LLC
Cave Country Dive Shop
Reviews for Devil's Den
Conditions
Ocean conditions, forecast and tides for Devil's Den
Devil's Den Ocean Conditions
Monthly averages for Devil's Den, 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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