Crater

Most Florida Keys patch reefs follow a familiar pattern — coral heads, sea fans, ledges, sand channels. Crater is a little different. The defining feature here is a large sand depression at the center of the site, a bowl-like hole that sits at the bottom of the reef structure and immediately orients you when you drop in. It looks exactly like what it's named for.

The crater itself is what makes the dive. Sand holes like this act as natural gathering points for bottom-dwelling species — Nurse Sharks rest along the edges, Southern Stingrays settle into the sand, and larger reef fish tend to congregate around the perimeter where the ledge meets the flat bottom. The reef surrounding the crater runs from about 35 feet at the top of the ledge down to 60 feet at the sand, giving divers a comfortable range to work with and enough depth to justify the trip offshore.

The ledge structure itself holds the usual Keys reef life — Moray Eels tucked into the coral, Snapper and Grunt in loose schools, and the occasional Barracuda hanging in the water column above. But most divers who've been here remember the sand hole first.