Short, accessible hike to historic Fort Amsterdam followed by shore-entry snorkeling over vibrant patch reefs at Great Bay. Finish reclining under umbrellas on powder sand—this half-day trip mixes history, easy hiking and marine wildlife viewing.
More ways to explore the area's outdoor wonders
You crest a low, eroded bluff and the harbor opens: a wash of blue cut by boats, the wind pushing salt across your skin. Fort Amsterdam sits squat on the headland—weathered stone that once watched over sugar and shipping—while the sea below dares you to drop in and meet the reef.
Difficulty
moderate
Duration
4 hours
Fitness Level
Moderate fitness: able to walk uneven coastal trails and swim/snorkel for up to an hour
Wildlife
History
Fort Amsterdam guarded Great Bay and Philipsburg during colonial conflicts; its ruins reveal artillery platforms and lookout points from the 17th–18th centuries.
Conservation
Operators emphasize shore-entry snorkeling to minimize reef damage and recommend reef-safe sunscreen and no-touch policies to protect coral and fish.
Reserve your spot on the St.Maarten Nature, Hike & Snorkeling today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Arrive early for calm water
Morning departures usually offer smoother seas and clearer visibility for snorkeling.
Wear water shoes
Rocky shore entry and exit are easier on grippy, quick-draining footwear.
Use reef-safe sunscreen
Protect coral and reduce irritation; apply at least 15 minutes before entering the water.
Bring a waterproof phone case
You’ll want photos—use a case to protect devices during the beach and snorkel segments.
Reef-safe sunscreen
Protects skin and fragile coral while complying with local environmental guidelines.
summer
Water shoes
Protects feet on rocky entries and makes shore-based snorkeling safer.
summer
Light dry bag
Keeps valuables and a spare towel dry while you're in the water.
Mask & snorkel (optional)
Personal gear often fits better than rental equipment and improves comfort for an hour-long snorkel.
summer