This dive site, San Juan Reef, located in the North of Mexico, is a popular choice often done as a second dive following more current-intensive sites like Barracuda or Cantrel, both well-known Cozumel reefs. The site is characterized by an abundance of large coral formations, including huge finger corals and extensive lettuce coral, interspersed with various sand sponges. Divers can explore a few ledges and overhangs that provide shelter for marine life. Navigation is generally straightforward along the reef structure, making it suitable for divers of varying experience levels.
The reef teems with marine life, most notably thousands of damselfish that can be seen darting along the coral structures, alongside vibrant red seaweed blanketing parts of the reef. Within the ledges and overhangs, divers will commonly encounter schools of French grunts and schoolmasters, finding refuge in these natural shelters. Other inhabitants include a variety of sand sponges and the diverse coral species that dominate the underwater landscape, creating a rich ecosystem.
While specific best times for San Juan Reef are not provided, the general diving season in Mexico offers good conditions year-round, with calmer waters typically outside of the hurricane season (June-November). This site is particularly well-suited for both snorkelers and freedivers due to its manageable depths and rich shallow reef life, offering excellent visibility for surface observations. Divers should be prepared for typical Caribbean reef conditions and enjoy the vibrant macro and reef fish opportunities.
