St. Maarten

The Porpoise stands out as St. Maarten's only deep dive site, setting it apart from the numerous shallow reefs and wrecks found throughout the Dutch side. Located offshore, this site is not accessible from shore and requires boat access, typically with one of the island's dive centers. Unlike most other dive locations in the region that stay within the 18-meter (60-foot) limit suitable for Open Water divers, The Porpoise delves into greater depths. This characteristic makes it a unique destination for divers seeking to explore beyond standard recreational limits and experience a different facet of St. Maarten's underwater topography. While specific marine life details for The Porpoise itself are not extensively documented in sources, its deeper, offshore nature suggests potential for encounters with larger pelagic species not typically seen on shallower reefs. The surrounding St. Maarten waters are home to a diverse array of fish and marine mammals, including migratory whales and dolphins during certain months. Diving The Porpoise offers an experience distinct from the popular wreck dives and coral gardens. It caters to those looking for a more challenging profile and the excitement of deeper exploration in the clear Caribbean waters, with excellent visibility common across St. Maarten's dive sites.

Proselyte Reef, located off the south coast of Sint Maarten near Philipsburg, is the island's most renowned dive site. It is named after HMS Proselyte, a Royal Navy frigate that sank here on September 4, 1801, after striking an uncharted coral head. Over two centuries, the wooden hull has disintegrated, leaving behind a scattered constellation of iron artifacts, including cannons, anchors, and ballast stones, which are now heavily encrusted with coral and integrated into the natural reef. The dive site is largely shallow, with a maximum depth typically around 18 meters (60 feet), making it accessible to divers of all experience levels. The topography features a sandy seabed interspersed with coral formations and the shipwreck debris. The wreck elements are spread across a wide area, avoiding the need for penetration. Proselyte Reef is a vibrant ecosystem supporting a diverse array of marine life year-round. Divers frequently encounter southern stingrays, green moray eels, barracudas, and nurse sharks. The site's combination of natural reef and artificial structure provides exceptional habitat, attracting various reef fish and crustaceans. Diving here offers a blend of historical exploration and marine observation. The visibility is often excellent, allowing clear views of the extensively coral-covered wreck and the surrounding reef. Boat trips from Philipsburg or Simpson Bay typically reach the site within fifteen minutes.

Little Bay, situated in St. Maarten, offers an easily accessible dive and snorkel site, distinguishing itself with a unique underwater sculpture park located directly off the beach. The site features a designated trail leading to a 'sea museum' adorned with statues, which are complemented by various coral-encrusted objects and small wrecks like a submarine and a helicopter. The topography is characterized by its very shallow depth profile, ranging from 0 to 6 meters, making it an ideal location for beginners and snorkelers. The calm, sheltered conditions within the bay ensure a relaxed environment for exploration. Beyond the sculpture trail, divers can also find Boulder Brain Corals and Maze Corals scattered across the rocky seafloor, particularly along the left side of the bay near the shore and extending towards the point. Marine life at Little Bay is varied despite its shallow nature, with frequent sightings of green turtles, octopuses, and Southern Stingrays. The seagrass beds are often frequented by stingrays, and schools of sergeant majors are abundant, especially around the Tiki Hut platform. The site's year-round warmth and protected status contribute to a consistent presence of species. Diving here typically involves an easy shore entry, or via ladders from the Tiki Hut platform, following a marked trail around the sculptures and natural rock formations. The shallow depth requires careful buoyancy control to avoid disturbing the environment, but it also allows for extended bottom times and a leisurely pace, focusing on macro life and the unique artistic installations.

La Renee is a deep, open-water wreck situated off the coast of Saint Martin, accessible only by boat. It offers a challenging dive profile suited for experienced scuba divers, descending to a reported depth of 45 meters on a sandy bottom. The wreck hosts exceptional marine biodiversity and strong coral growth, attracting a variety of pelagic species around its hull. This dive site is located on the French side of the island, within the waters of French St. Martin, as opposed to many shallower sites found in Dutch St. Maarten. It stands out as one of the deeper wreck dives in the region. The topography of the site is characterized by the wreck itself, which rests at approximately 45 meters, providing a substantial structure for marine colonization. The surrounding bottom is sandy, contrasting with the vibrant life on the wreck. Conditions generally involve open-water exposure, requiring good gas planning and conservative ascent strategies due to the depth. Marine life at La Renee is notably diverse, with frequent sightings of barracudas, eagle rays, and green turtles. The strong reef life and pelagic activity contribute to an exceptional variety of aquatic species around the wreck throughout the year, with a 'best season' extending from December to May. Coral health is reported as excellent on the wreck, enhancing its appeal as a vibrant artificial reef. Diving La Renee necessitates advanced skills due to its depth and open-water nature. Divers typically undertake a guided offshore wreck dive, emphasizing disciplined ascent planning and comfort with boat entries. Visibility averages around 11 meters, and while currents are generally light, the deep profile and overhead environment of the wreck classify it as an expert-level dive. Snorkeling and freediving are not suitable activities for this site.