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 inland spring cave, a unique experience for divers in Florida. You descend into a large cavern with an opening to the sky, creating interesting light shafts on sunny days. Below the surface, it’s mostly limestone formations, with a few small fish like eastern mosquitofish around the edges. It’s a good spot for buoyancy practice or a relaxed dive when ocean conditions are rough.
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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