

Best for advanced divers, 18-40m, boat entry, moderate current.
The USS Spiegel Grove is a 155-metre decommissioned US Navy Landing Ship Dock located in the Molasses Reef Area. Resting upright on a sandy bottom, the wreck sits at depths between 18 and 40 metres, with the superstructure rising to approximately 18 metres. This site is intended for advanced divers, offering extensive penetration opportunities within its cavernous interior. Conditions include moderate currents and visibility ranging from 10 to 30 metres. Divers must access the site via boat and should remain alert for boat traffic during ascent. Due to the depth and overhead environment, proper wreck certification and careful gas management are required to mitigate risks.
25.06670, -80.30020
Current can shift quickly around the wreck and the sheer hull acts as a deflector, so confirm the drift direction on the surface before descending and plan your exit accordingly. Narcosis is a real factor at depth here, particularly inside the vessel, so penetration should only be attempted with proper wreck certification and a solid dive plan.
The wreck is located six miles offshore from Key Largo and is accessed via boat using mooring buoys.
Recorded at this site
Depth
18-40m
Visibility
10-30m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
24-27°C
Current
Moderate
Typical Dive
30 min
No, this site is intended for advanced divers due to its depth, potential for nitrogen narcosis, and complex overhead environments within the wreck.
The wreck sits on the bottom at depths between 18 and 40 metres, with an average depth of 25 metres.
The site is located approximately 9656 metres from shore and requires boat access.
Hazards include boat traffic, decompression risks, nitrogen narcosis, strong currents, and overhead environments within the ship structure.
The site is designed for scuba diving, with the shallowest part of the superstructure at 18 metres, making it unsuitable for snorkelling.
Diving at USS Spiegel Grove in Key Largo requires the following certifications: Advanced, Wreck. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at USS Spiegel Grove in Key Largo. Water temperatures range from 24°C to 27°C.
Expect moderate currents at USS Spiegel Grove in Key Largo. Good buoyancy control and some drift diving experience is helpful.
Visibility at USS Spiegel Grove in Key Largo typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.