BVI greets visitors with pristine white-sand beaches, lush mountains, and colorful flowers, and underwater terrain that’s equally attractive. Coral gardens shelter hundreds of aquatic species—octopus, moray eels, sea turtles, and reef fish among them—as well as towering seamounts, underwater mountains that date back to the islands’ volcanic origins. There are more than 100 dive sites and wrecks to uncover, most notably, the RMS Rhone, a 310-foot British mail ship that sunk during a hurricane in 1867. It marks the 150th anniversary of that fateful day in October 2017. Guided dive tours offer an up-close look at some of the ship’s features and a peek into its cavernous interior. Coral and sponges grow on the historic wreck, which teems with marine life. You can rent gear and arrange for excursions at full-service dive shops on Virgin Gorda, Scrub Island, Peter Island, Jost Van Dyke, Cooper Island, and Tortola.