Caribbean & Atlantic
The site itself, where it sits, and what to know before you plan a snorkel around it. We describe it accurately — access and conditions are verified locally, on the day.
The Caribbean's classic self-guided underwater trail — marked buoys take snorkelers over a diverse stretch of coral, with interpretive signs, inside a protected national park.
This is one of the key sites on USVI & BVI, which sits at #13 on our ranked catalog. National-park reef off St. John and the granite boulder gardens of the BVI.
Pair it with Maho Bay on St. John's north shore — a seagrass-filled bay where sea turtles graze just metres offshore, the easiest shallow turtle time in the same national park. Trunk Bay's trail is self-guided and sits inside Virgin Islands National Park, so check current park notices on your way in.
Verify access locally and confirm with your guide on the day.
Planning a snorkel at Trunk Bay Underwater Trail?
Get the whole journey assembled — boat days, gear and day-by-day timing notes, with flights and stays linked through our booking partners — by the Double Fathom Concierge for a one-time $29. Re-plan any time, chat support through the trip, a destination-specific packing list, curated off-menu operators, and a printable offline itinerary PDF.
Secure checkout by Stripe — pay by card, receipt by email. A one-time, per-trip purchase — nothing recurring, and no rush either way.