ST. JOHN, U.S. Virgin Islands—Thirty-five feet deep in clear turquoise waters, a three-foot-long yellow underwater robot maneuvers over a coral reef at a popular snorkeling site named Tektite.

Researchers studying a coral disease that has devastated reefs across the Caribbean say they’ve come up with a promising ...

Though thousands of miles from Rarotonga, Brown conducts similar thermal resistance experiments on local eelgrass. She’s been ...

Apprill said there was a reef in the U.S. Virgin Islands that lost 30% of its photosynthetic bacteria — a sign of declining health — and there was circumstantial evidence that some form of ...

This study emerged from data collected at the long-term reef monitoring site established in the 1980s in the U.S. Virgin Islands by co-author Peter Edmunds, professor of biology at California ...

Colorful reefs and caves Spots such as The Indians, The Caves near Norman Island, and Alice in Wonderland near Ginger Island showcase the diversity of the BVI underwater world: steep walls, cave ...

One Vogue writer on her snorkeling obsessions—and the best destinations around the world to experience it, for novices and experts alike.

Explore exotic, passport-free tropical destinations within US territories and beyond. From the US Virgin Islands and Puerto ...

These resorts might offer generous rooms to spread out, pools that are fun for the kids, restaurants to please every palate, ...