Captain Grumphy
Protected Area
Davis Reef Sanctuary Preserva Sanctuary
Why dive here
With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Captain Grumphy offers some of Florida Keys's richest wreck diving. Water ranges 19-32°C, warmest July, August, September.
Captain Grumphy in the Florida Keys typically offers a gentle drift over sandy patches and smaller coral heads. You'll often spot grunts, snapper, and the occasional loggerhead turtle making its way across the bottom. It’s a comfortable dive, well-suited for divers looking for a relaxed exploration rather than dramatic coral formations or large pelagics. Visibility here tends to be reliable, usually around 15-20 meters.
Typical Captain Grumphy Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Nearest Dive Centres to Captain Grumphy
Dive shops near Captain Grumphy
Islamorada Dive Center
Florida Keys Dive Center
Conch Republic Divers
Deep Sea Scuba
Key Dives
Dive In Watersports
Reviews for Captain Grumphy
Conditions
Ocean conditions, forecast and tides for Captain Grumphy
Captain Grumphy Ocean Conditions
Monthly averages for Captain Grumphy, 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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