Reef wall with crater-like sand depression, 35-60 ft depth, 40-60 ft visibility, moderate current, year-round seasonality.
United States of America · Key Largo
Florida Keys reef crater with a sand hole and fish.
Florida Keys reef crater with a sand hole and fish.
Crater is a Florida Keys reef-wall dive built around a sandy pit and surrounding spur-and-groove coral. The appeal is an easy-to-read layout, broad coral structure, and a reliable mix of schooling fish and larger reef visitors along the edge. It is best treated as a boat-access recreational dive that rewards calm seas, light current, and a slow scan of the sand hole and reef rim.
Site Conditions
Safety Notes
This is a deeper dive with occasional shark encounters; plan gas and depth limits accordingly.
Access Restrictions
Boat access only; open-water certification is the practical baseline.
Legal Notes
Managed reef site; follow local boating, anchoring, and dive-operator rules.
Community notes to help plan your visit.
Scuba Diving
Best as a guided recreational scuba dive along the reef wall and around the sand hole. The site rewards a slow circuit and good buoyancy.
Freediving
Not an ideal freedive target. The reef wall and site layout are better suited to scuba than to breath-hold diving.
Snorkeling
Not an ideal snorkel target. The main structure sits below routine surface-viewing range, so scuba is the practical option.
Species commonly reported at this site, with direct links into their wildlife guides.
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Last Updated
Research Sources
Reef wall with crater-like sand depression, 35-60 ft depth, 40-60 ft visibility, moderate current, year-round seasonality.
Another independent directory echoes the southern sennet school and the reef-wall crater layout.

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