Virgin Islands wildlife and where to see it

Green iguanas on St. Thomas, and where they sun

Nobody has to look for the iguanas on St. Thomas; they find you. Green iguanas sun on the roads and the hotel lawns, along the waterfront in Charlotte Amalie and in the trees above the walls they favor, from hatchlings the length of your hand to males longer than your arm, tail included. The surest places are any sunny stone wall before noon and the grounds of the big East End resorts, where they have learned that people mean fruit. No government page describes them, so take all of that as ours.

Give them room and do not feed them. They are wild, they bite and whip when cornered, and a fed iguana is the one on the villa deck at breakfast. They are on St. John too, in smaller numbers, and on the larger BVI islands. What they are not is the rock iguana of Anegada, a different and far rarer animal, further down this page. St. Thomas, the island page, carries the beaches and the hills where you will meet them.

The St. John donkeys on Centerline Road

The donkeys of St. John are feral, the descendants of the animals the plantations worked, and the park calls them the island's unofficial mascots in the same breath as it lists them, with the goats and the deer, among the newcomers that eat the native plants. You meet them in the road and at the beach, usually when you least expect it. The place to count on them is Centerline Road, the island's spine, from the top of the climb out of Cruz Bay east to Coral Bay. Nathan, who owns this site, has driven that road for years and found them on it in every season, and the line on the map above is the road as the map routes it. It is also the road the park's trailheads hang off, so a day of hiking tends to begin with a donkey.

Slow down for them and do not feed or touch them. The park says so, and a donkey that expects a sandwich stands in the road for the next car. They wander into the beach lots and onto the trails, and they are the one large animal a child is likeliest to see on St. John, which is reason enough to drive the spine road once in daylight rather than only the North Shore. The park itself is on our Virgin Islands National Park page.

Deer, mongoose and the park's other newcomers

No mammal but the bats is native to Virgin Islands National Park. The park's own line is that none of the deer, goats, sheep, cows, donkeys, cats, dogs, mongoose, rats or pigs on St. John today belongs here. The white-tailed deer turn up anywhere in the park, in the Cinnamon Bay campground and along the trails, browsing the same native plants the goats and the donkeys eat.

The mongoose is the one you will see most and like least. The park calls them aggressive predators that feed on birds, reptiles, turtle eggs and visitors' lunchboxes, and it has a plan for the sustained reduction of rats, cats and mongooses. They are at every beach lot and trailhead on St. John and across St. Thomas, a brown streak over the road or a pair of eyes under the picnic table. Keep your bag zipped on the sand; the lunchbox line is not a joke. The pigs the park names can be aggressive toward people and are rare enough that most visitors never meet one. All of it is on the national park page.

Virgin Islands birds: Francis Bay and the salt ponds

About 144 species of birds can be seen in Virgin Islands National Park, around 35 of them here all year, and the calendar decides which ones you meet. The neotropical migrants, the warblers and the shorebirds, are here from November to April; the summer seabirds from April to November. A winter visit is for warblers on the trails, a summer one for boobies and frigatebirds over the water.

The park's most productive hour is the Francis Bay Salt Pond trail on St. John. Hummingbirds, flycatchers, doves, pigeons, cuckoos, thrashers and anis in the dry forest; ducks, stilts, moorhens and migrating shorebirds on the pond; pelicans, boobies and frigatebirds along the beach, at least twelve species in a one-hour walk by the park's count. The lower section is an accessible boardwalk through the mangroves to two viewing platforms, past the Mary's Point estate house, half a mile from the sugar factory lot to the ramp. Francis Bay is 25 minutes from Cruz Bay by car.

The other salt ponds, at Salt Pond Bay, Lameshur, Frank Bay, Leinster Bay and Brown Bay, hold the same wading birds with fewer people, and the moist forest of the Cinnamon Bay loop and the Reef Bay Trail is where the park says to look for the Bridled Quail-Dove. Bring binoculars; nothing is rented. The brown pelican diving beside you at any beach and the frigatebird hanging over every harbor need none.

Anegada's flamingos and the rock iguana

Anegada, the flat coral island at the top of the British Virgin Islands, holds the two animals in the territory worth a trip of their own. The flamingos are back on the pond that was named for them. There were once so many that the pond took their name, the BVI Tourist Board says; they disappeared during the island's development, and the flock brought back since has thrived into the island's icon. You watch them from the lookout, a free platform with a telescope on the road along the pond, east from the ferry terminal or southwest from the airport, with an identification board for the pond's other birds. The flamingos are far off across the water, and that is the point. Keep to the lookout; the birds leave when disturbed.

The Anegada rock iguana is listed as critically endangered and lives nowhere else on earth. The Tourist Board counts it among the island's native species and sends visitors to the nature trail at Bones Bight for a glimpse of a wild one. The National Parks Trust raises hatchlings at its headstart facility in The Settlement, by our read until they are past the size a feral cat can take; its page describes the enclosures and prints no visiting hours, so ask on the island whether the facility is open the day you go. Both are on the Anegada page, with the ferry and the flights that get you there.

Humpback whales in winter, dolphins, and the sharks

Humpback whales pass the Virgin Islands in winter, on their way to calve and mate in the warm water of the West Indies, and the park's own line is that in the winter months, with luck, you may catch a glimpse of one migrating through. The sightings people talk about are from boats in the channels and from the high overlooks. No St. Thomas operator prints a whale-watching trip as of October 2026, and the conservation association that once ran one each February and March lists none now, so the way to see one is a winter day charter with a captain willing to go and look, or a terrace with a view north. NOAA asks that any large whale be watched from at least 100 yards, by sea or from land. What a winter week here is like is on our weather page.

Dolphins live in these waters all year, the park says. A pod off the bow on a crossing to the BVI or along the south shore of St. Thomas is the likeliest encounter, and never a scheduled one.

Sharks, said plainly: the park's line is that shark attacks are extremely rare in the Virgin Islands. The shark a snorkeler actually meets is a nurse shark asleep under a ledge, harmless unless grabbed, or a reef shark cruising the outer wall on a boat dive. The park's rules are the sensible ones. No swimming at night or at dusk and dawn, no shiny jewelry, out of the water if you are bleeding or if a shark comes close or acts agitated, and away from water being fished or where fish are being cleaned.

The bioluminescent bay is on St. Croix, not St. Thomas

There is no bioluminescent bay on St. Thomas. The night kayak tours sold on the island glow by other means. Night Kayak's clear kayaks off Frenchman's Reef are lit from below by an LED system that illuminates the sea beneath you, one hour from $69, and The VI Cat's Glow Boats from Marriott's Frenchman's Cove are the same idea, an hour and a quarter from $45 (both by their own pages, October 2026). Virgin Islands Ecotours' Cas Cay Night Kayak paddles the Mangrove Lagoon in the dark on weeknights, $69 an adult, for the stars, the tarpon and the stories, and claims no glow in the water. Night Kayak's tour and Ecotours' lagoon paddle are on our St. Thomas kayaking page; The VI Cat's Glow Boats is booked on its own site.

The glowing water people are searching for is on St. Croix, at Salt River Bay, inside the national historical park and ecological preserve. Sea Thru Kayaks VI runs a two-hour Bioluminescent Bay Kayak Tour from Salt River Marina, $55 an adult in a sit-on-top kayak or $70 in a transparent one as of October 2026, and describes the glow as billions of microorganisms lighting up as the paddle disturbs them. We do not list St. Croix villas, so this is a day trip by seaplane or ferry from St. Thomas, and a dark night is the better one for it.

Sea turtles, island by island, and the park

Sea turtles are the animal most people cross an ocean for, and every bay where they are seen is on the map above, from Maho Bay on St. John to Loblolly Bay on Anegada. On St. John the park names Maho Bay for green turtles over the seagrass, early or late in the day, with Francis Bay, Salt Pond Bay and the drop-off at Waterlemon Cay behind it; our St. John sea turtles page ranks them with the drive to each and the rules. On St. Thomas it is Brewers Bay from the sand, beside the airport, and the catamaran to Turtle Cove off Little Buck Island, on our St. Thomas sea turtles page. In the BVI, turtles are often over the reef at Mahoe Bay on Virgin Gorda and over Horseshoe Reef off Loblolly Bay on Anegada, and our BVI snorkeling page covers both.

The rules are the same on every island. NOAA Fisheries asks for 50 yards from a turtle in the water and no touching or feeding; every sea turtle in US waters is protected under the Endangered Species Act; a stranded or injured one in the US islands goes to the STAR hotline, (340) 690-0474. Most of the animals on this page, the donkeys, the deer, the mongoose and the birds of the salt ponds, live inside Virgin Islands National Park, almost 58 percent of St. John's land, which is where a wildlife day on the islands usually ends up.

Questions about the Virgin Islands