reservenaturelle-saint-martin.com · Official Conservation
Reserve newsletter with sea turtle monitoring context for Sec de Grand-Case.
Dive Spot Guide•
Sec Grand Case
Shallow coral reef in Grand Case Bay known for turtles and rays
Local operator required
Grand Case dive shops normally run boat or guided snorkel access to the reef.
Easy bay reef with shallow coral heads, calm-water snorkeling potential and strong turtle-and-ray appeal for all levels.
About Sec Grand Case
Sec Grand Case is a shallow coral reef in Grand Case Bay with easy access and strong turtle-and-ray interest. The reef rises close to the surface in places and stays approachable for all levels, so it works for relaxed dives and calm-water snorkeling. It is most comfortable when the weather is settled, because wind can add surge across the shallow sections.
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Research Estimate At Sec Grand Case
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessSimple entry
CoralHealthy coral
Aquatic LifeExceptional variety
FacilitiesGood facilities
Crowd / PopularityFew visitors
CurrentNo current
SurgeLight surge
Where Is Sec Grand Case?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Sec Grand Case Planning Details
Depth range, seasonality, and planning context.
Reported Depth
5m - 12m
Depth Note
Shallow reef rising to just below the surface at points, with the main band around 5 to 12 m.
Best Season
Year-round; calm-weather windows are best
Typical Conditions
Sheltered bay water with minimal current and good visibility; calm days are best because wind can push surge into the shallow reef.
Safety & Access At Sec Grand Case
Hazards, restrictions, and access requirements.
Key Hazards
Surge
Safety Notes
Choose calm weather and keep a margin from the shallow crest when wind rises.
Access Restrictions
Boat access is normal; calm weather makes shore or snorkel use less finicky.
Legal Notes
The reef sits in Saint-Martin's protected marine area, so reserve moorings and local rules should be respected.
Local Intel For Sec Grand Case
Community notes to help plan your visit.
Scuba Diving
Shallow reef diving with strong turtle-and-ray encounters; calm conditions make the site especially easy to enjoy.
Freediving
The shallow reef crest makes it workable for experienced freedivers on flat days.
Snorkeling
Calm-weather snorkelers can work the shallow reef crest from the bay side.
Wildlife at Sec Grand Case
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Sec Grand Case
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Sec Grand Case
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
