Volendam

Circle the island of Key West on a guided jet ski ride past famous landmarks, the Southernmost Point and clear turquoise flats.

An all-inclusive boat day to the backcountry sandbars, with a stop where wild dolphins play, plus snorkeling, food and drinks.

The classic way to see Key West: a narrated 90-minute ride past Hemingway's house, Duval Street, Mallory Square and the old town, starting right by the pier.

Aruba's most-reviewed tour: drive off-road along the rugged north coast to a hidden beach and a natural cave pool for a swim.

An easy bus tour to the classic sights, including the California Lighthouse, Casibari rock formations, the Alto Vista chapel and the north coast.

Sail along Aruba's calm west coast to snorkel at a shipwreck and coral reef, with lunch and drinks served on board.

Discover the Spice Isle: swim at Concord Waterfall, see how Grenada's chocolate is made, taste local rum and visit the Grand Etang crater lake.

Float down a rainforest river on a tube, with stops at Annandale Falls and Grand Etang lake.

Snorkel among the famous underwater sculptures at Moliniere Bay and over a nearby reef on a four-hour boat trip.

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.

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.