Sainte-Marie, though less famous than Nosy Be for diving, offers exceptional sites accessible to all levels, particularly around Île aux Nattes. Several dive clubs operate here, but not all guarantee the same level of professionalism. Here are our favourite spots for an unforgettable underwater experience.
The Best Season for Each Experience : During the austral winter, at the height of whale season, it is not uncommon to hear the enchanting songs of cetaceans while diving, an experience as rare as it is magical! However, for optimal underwater visibility, it is best to dive between October and April.
The Most Stunning Dive Sites
Around Île aux Nattes :
- Sites accessible from Level 1 (12-17 m): The seabed here showcases large coral formations resembling pagodas, home to rays, turtles, and lobsters. Between September and January, reef sharks can sometimes be spotted.
- The Wreck of the Bateleur (10 m): This 12-metre-long tugboat, sunk at the southern tip in the 1970s, is a fascinating dive site.
- Ray’s Palace (33 m, Level 2 minimum) : Located 10 km off the island, this site is reserved for experienced divers.
- Treasure Island (21-30 m) : A highly photogenic dive site featuring an impressive variety of coin-shaped corals, crocodile fish, gigantic lobsters, and a resident pair of marbled moray eels.
Near La Crique :
- Coco Bay (20 m) : A relatively easy dive along a collapsed granite rock, home to nudibranchs and gorgonians, though fish are somewhat scarce.
- Coral Garden (18 m) : Stunning coral formations and some reef species to observe. These two sites are usually explored on the same dive trip.
La Cocoteraie (North of the island) :
This remote and difficult-to-access site requires a minimum of six divers. A wreck, intentionally sunk at 15 m, provides a habitat for lobsters, crocodile fish, and soft coral. Notable residents include fusiliers and enormous groupers, known locally as “loches,” reaching up to 100 kg.
The Serapis (Opposite the town) :
This historic wreck lies at 25 m (Level 2 required). Dating back to 1781, this ship took part in the American War of Independence before sinking just two years after its construction. Its cannons remain visible underwater.
Big Eyes (West, opposite Île aux Nattes’ channel) :
Accessible from Level 1 (18 m), this site is perfect for learning to identify local marine life. It is also home to the famous porcupine fish (Diodon), easily recognised by its large, expressive eyes.
Whether you are a beginner or an experienced diver, Sainte-Marie offers extraordinary underwater treasures. Get your gear ready and set off to explore these exceptional dive sites !
