Buck Island, Properly: The Reef, the Trail & Turtle Beach

Every island has its one non-negotiable outing. On St. Croix it's Buck Island — a small, uninhabited islet about a mile and a half off the north shore, ringed by a barrier reef so significant that President Kennedy protected it as a national monument in 1961, calling it one of the finest marine gardens in the Caribbean Sea.

What it actually is

Buck Island Reef National Monument protects the islet and, since President Clinton's 2001 expansion added more than 18,000 acres of submerged land, a full no-take marine reserve around it. Nothing gets fished, anchored on, or taken — which is why the elkhorn coral stands here still look the way postcards remember the Caribbean.

The monument's famous feature is its underwater trail: a marked snorkel route through the reef's eastern lagoon, with plaques on the sea floor naming what you're floating over. It's shallow, guided by the markers, and genuinely good — not a gimmick. Hawksbill turtles and reef fish are regulars, and the island's west end holds Turtle Beach, a stretch of white sand regularly ranked among the Caribbean's most beautiful.

How you get there

You don't take your own boat unless it carries an NPS permit — landing is restricted to five authorized concessionaires, all real operations we've verified: Big Beard's Adventure Tours, Caribbean Sea Adventures, Jolly Roger Charters, Llewellyn's Charters, and Buck Island Charters' Teroro II and Dragonfly. The crossing runs 40–90 minutes depending on the boat and the day.

From The Cerulean, the smart play is the East End's own operation — Teroro II and Dragonfly sail from Green Cay Marina, minutes from the villa, while the Christiansted boardwalk boats add a town morning to the day.

Half day or full day

Half-day trips are snorkel-focused: out, the trail, back. Full days add Turtle Beach time and usually lunch — with kids or first-time snorkelers, the full day is the right call. Bring reef-safe mineral sunscreen (the USVI banned oxybenzone sunscreens in 2020 — shops sell compliant bottles), water, and nothing you'd mind sandy.

The quiet resident

Buck Island is also a lifeboat: it hosts a population of the endangered St. Croix ground lizard, a species wiped off the main island after the mongoose arrived and now surviving on a handful of protected cays. If a small, striped lizard investigates your beach bag, you've met one of the rarest reptiles under the U.S. flag — look, don't touch.

Booking it

Winter weeks sell out. Tell the villa's concierge your preferred day and group size when you book your stay, and they'll hold the right boat — see the boat charter directory for the full verified list.