Trunk Bay is a celebrated national park beach on St. John, U.S. Virgin Islands, renowned for its underwater snorkel trail, powdery white sand, and vivid turquoise water.
Trunk Bay is located on the north shore of St. John in the U.S. Virgin Islands, protected within Virgin Islands National Park. The park was established in 1956, and the preserved landscape means the hillsides above the beach remain dense with tropical vegetation.
The beach is perhaps best known for its self-guided underwater snorkel trail, one of the first of its kind in the National Park System. Labeled markers along the seafloor identify elkhorn coral, brain coral, and the fish species that shelter among them. Even outside the trail, the reef system supports sea turtles, parrotfish, and rays.
On shore, facilities include restrooms, changing rooms, a snack bar, and equipment rentals, making it accessible without requiring advance preparation. The surrounding park trails connect to other quiet coves and elevated viewpoints across St. John.
Trunk Bay draws visitors from around the world, yet the national park setting keeps development minimal and the environment largely intact. It is a place where natural beauty and thoughtful conservation exist side by side, making it one of the most rewarding beach destinations in the entire Caribbean.
Arrive before 10 a.m. to claim a shaded spot and beat the cruise-ship day crowds.
Follow the marked 225-yard underwater snorkel trail to read submerged plaques identifying coral and marine life.
Bring water shoes, as the entry point can have scattered rocks and coral fragments near the shoreline.
Pack your own snacks and drinks since the on-site facilities are limited and outside food is permitted.
Visit on a weekday rather than a weekend for noticeably fewer visitors and a quieter atmosphere.
Customize a private island day of beaches, history and scenic drives
Explore St John’s remote side beyond Virgin Islands National Park
Explore St John’s remote destinations beyond the national park
Discover St. John’s history and Trunk Bay on a private escape
Explore St. John’s history and Trunk Bay with your private group
See St. John’s scenic overlooks and unwind at Trunk Bay Beach