Crystal Grace

Swim through the narrow Titou Gorge, soak in natural hot springs, then snorkel at Champagne Reef, where volcanic bubbles rise from the sea floor.

Head out from Roseau to look for the sperm whales and dolphins that live off Dominica's coast year-round.

Cook a Creole meal with a local host using island produce and spices, then sit down to enjoy it together.

Barbados' most-booked trip: sail the west coast, swim with sea turtles, snorkel over shipwrecks in Carlisle Bay, and enjoy lunch and drinks on board.

Ride an electric tram deep into Harrison's Cave to see crystal-clear streams, waterfalls and huge stalactites.

A full-day drive from the calm west coast beaches to the wild Atlantic shore at Bathsheba, with stops at the island's best lookouts and landmarks.

St. Lucia's most-booked tour: drive through villages and rainforest to Soufriere and the Pitons, see the drive-in volcano, then cruise back along the coast.

A two-hour ATV ride over hills and through banana plantations with sweeping island views.

Soak in the warm volcanic mud baths at Sulphur Springs, then rinse off at a waterfall in the rainforest. A perfect 5-star rating from hundreds of travelers.

See St. Kitts the way locals do, with a guide who takes you past the usual stops to villages, viewpoints and the stories behind them. One of the island's best-reviewed tours.

Sail the calm Caribbean coast by catamaran, snorkel a reef, and enjoy lunch and drinks on board.

Ride an ATV through old sugar cane fields and hillside trails, with views of the ocean and neighboring Nevis.

A small-group trip into the only tropical rainforest in the U.S. National Forest system to hike, swim in river pools and ride a natural rock waterslide.

Glide along San Juan's coast with an underwater jet scooter, looking for sea turtles on the reef. Videos of your swim are included, and it takes about 90 minutes.

See the colorful streets, forts and city walls of Old San Juan by golf cart, covering more ground than on foot, just steps from the cruise pier.