This dive site, Îlet Thiery, is a jewel within the Ilets du Francois archipelago off Martinique's east coast, primarily designed as an accessible snorkel trail. Marked by six distinct buoys, the trail guides visitors over diverse underwater terrain including sandy expanses, vibrant seagrass beds, and a small coral cay. Its very shallow nature, with a maximum depth of 5 meters, makes it an ideal location for entry-level divers and snorkelers to explore without extensive training or equipment. There is no specific historical context or story beyond its natural formation and recent development as a recreational trail.
The marine environment at Îlet Thiery is surprisingly rich given its shallow depth. Explorers can anticipate encountering a variety of small fish species navigating the seagrass and coral formations. Invertebrates such as crabs, shrimp, and sea stars are common sights, adding to the macro diversity of the site. The mix of sandy, grassy, and coral habitats provides niches for a diverse array of smaller marine life, making it a rewarding spot for observation.
The best time to visit Îlet Thiery, like much of Martinique, is typically during the dry season from December to May, when weather is generally calm and visibility is excellent, though it remains accessible year-round. It's an excellent location for families, beginners, and anyone looking for a relaxed introduction to Caribbean marine life. Freedivers will appreciate the clear, shallow waters and the well-defined snorkel trail for easy navigation and extended bottom time without the need for heavy gear.

