Glide through St. Thomas's secret mangrove lagoons at dusk, then witness the Caribbean's magical bioluminescence — millions of microorganisms lighting your paddle strokes electric blue in the darkness.
What to expect
As the sun dips behind the hills, your guide leads a small group by kayak into the sheltered mangrove lagoons near Cas Cay — a marine sanctuary teeming with herons, tarpon, and juvenile reef fish sheltering in the roots. As full darkness falls, every dip of your paddle ignites a galaxy of blue-green bioluminescent light; the water glows around your hull like liquid starlight. The effect is mesmerizing and deeply moving. Return paddles under a Caribbean sky full of stars.
Good to know
Tours depart from the East End marina area, approx. 30–35 minutes by taxi from the cruise piers. Best experienced on or near a new moon for maximum bioluminescent contrast — check the moon calendar when booking. Confirm your ship's all-aboard time carefully; sunset tours can run close to evening departure. Pre-book directly with the operator and confirm transfer logistics.
Sail there
Luxury cruises that call at St. Thomas — book through us, the fare is identical and your concierge stays on your side.
More to do in St. Thomas
- Private Catamaran Sail & Snorkel at Honeymoon Beach, Water Island
- Magens Bay Sunrise Beach & Panoramic Island Safari by Open-Air Jeep
- Sea Trek Helmet Dive & Coral World Ocean Park Private Experience
- Charlotte Amalie Historic District Private Walking Tour & Rum Tasting
- Paradise Point Skyride & Exclusive Hilltop Champagne Sunset Toast