El Islote

El Islote, meaning "The Islet," is a coral reef and pinnacle dive site located near the southern tip of Cozumel, close to the Punta Celarain lighthouse, where eastern and western water movement can converge. The site features a large patch coral formation that begins shallow and gradually slopes deeper, with sea fans and mixed coral species across the reef structure. The combination of coral reef and pinnacle creates a diverse habitat, and the site sees minimal diver traffic due to its remote, exposed southern position.

The reef starts shallow and extends to a maximum of about 19.8 metres (65 feet), offering a gradual slope suitable for working across different depth ranges. Access is boat-only and highly condition-dependent — vessels can only reach the site when wind and sea state permit safe passage around the island's southern end.

Marine life at El Islote is varied across reef and pelagic species. Regular encounters include schools of African Pampanos, Groupers, Snappers, Turtles, Garden Eels, Green Eels, Zebra Eels, Fine-Spotted Eels, Jewel Eels, Lobsters, Nudibranchs, and Giant Damselfish. Schools of Sardines appear seasonally, sometimes forming dense bait balls around the site, and White Tip Sharks are a possible encounter. The abundance of eels and nudibranchs makes it a productive site for macro photography.