This dive site, known as Hole in the Wall, is a popular spot located on mooring ball 8 on the North end of Molasses Reef, near the winch hole. It features a small, natural swim-through within the reef structure, which divers can easily navigate. While there isn't extensive historical information specifically about the 'Hole in the Wall' itself, Molasses Reef is one of the most famous and well-preserved sections of the Florida Keys National Marine Sanctuary.
The site is teeming with Caribbean reef fish, including various species of damselfish, parrotfish, and snapper, making it excellent for observing typical reef ecosystems. Divers frequently encounter larger marine life such as sea turtles, nurse sharks, and southern rays, adding to the excitement of the dive. The vibrant coral formations of Molasses Reef provide a rich habitat for this diverse array of marine species.
The best time to visit this dive site, like much of the Florida Keys, is generally spring through fall for warmer water temperatures and calmer seas, though diving is good year-round. Its shallow depths (average 7m, max 14m) make it ideal for both scuba divers and freedivers seeking to explore a swim-through and abundant marine life. Snorkelers will also enjoy the vibrant reef and common animal sightings from the surface.

