National Nature Reserve of St. Martin — 29 km² of Protected Marine and Coastal Habitat
French side nature reserve protecting reefs, seagrass beds, mangroves, Tintamarre, and Pinel Island since 1999.
Why Go
Established in 1999, the National Nature Reserve of St. Martin covers approximately 29 square kilometers of marine habitat and 1.8 square kilometers of land on the French side, protecting the ecosystems that make the island's waters worth visiting: coral reefs, seagrass beds, mangroves, and the coastlines of Tintamarre and Pinel Island. When you snorkel at Tintamarre, paddle to Pinel, or watch turtles nest on a French-side beach, you are inside this reserve.
The Experience
The reserve is not a single visitor center — it is a managed area spanning multiple sites across the French side. Snorkeling and diving in designated zones puts you in protected waters where marine life density is measurably higher than in unmanaged areas. Sea turtles, rays, lobsters, and reef fish are monitored and protected. Guided nature walks explore terrestrial areas including coastal vegetation and mangrove forests with naturalist guides who explain the conservation science. Educational programs, eco-tours, and volunteer opportunities provide deeper engagement for visitors who want to participate rather than observe. Tintamarre islet and Pinel Island are both within the reserve's boundaries, making visits to these popular destinations simultaneously a nature reserve experience.
What to Try
Snorkeling at Tintamarre is the premier in-water experience within the reserve — the protected status contributes to water clarity and marine life presence. Guided nature walks provide context that self-guided visits miss, especially regarding species identification and conservation challenges. If volunteer programs are running during your visit (turtle monitoring, reef surveys), participation provides a genuinely different perspective on the island.
Insider Tip
The reserve enforces rules that matter: no anchoring on coral (use moorings), no collecting shells or marine organisms, and regulated fishing. Charter operators who respect these rules use the designated mooring balls — ask your boat captain. The reserve office can provide current information on turtle nesting activity, volunteer dates, and guided tour schedules. Visiting during low season (May-November) often means quieter sites and better chance of turtle sightings.
The Practical Stuff
Reserve covers marine and land areas across the French side, headquartered near Anse Marcel. Budget pricing — many access points are free. Snorkeling and diving in designated zones. Guided walks and eco-tours by schedule. Volunteer programs seasonal. Rules enforced: no anchoring on coral, no collection, regulated fishing. Contact the reserve office for current program availability.
Pair It With
- Cottages de Lonvilliers Guide — Anse Marcel accommodation near the reserve headquarters
- The Trail Guide — Guided hiking operator based in Anse Marcel for land-based nature exploration