Crystal Serenity

Travel inland to Chacchoben, a Mayan city hidden in the jungle, to explore its temples and pyramids with a guide and learn about the people who built them.

Visit the stunning Bacalar lagoon, famous for its many shades of blue, to swim and relax in its fresh, clear water.

Cook authentic Mexican dishes with a local chef at a beachfront cafe near the port, then eat what you made by the sea. A two-hour class with perfect reviews.

Float on an inner tube through limestone caves along a jungle river, the most popular adventure in Belize, followed by a local lunch.

Travel by boat up a jungle river to Lamanai, a Mayan city with towering temples, keeping an eye out for crocodiles and howler monkeys along the way.

A two-hour taste of Belize City: local dishes, snacks and drinks, plus a look at the city's landmarks, close to the tender pier.

Cruise the jungle canals looking for sloths, monkeys and toucans, then see the highlights of Puerto Limón and Playa Bonita.

Walk the rainforest trail of Cahuita National Park along white-sand beaches, watching for wildlife, with a canal boat ride included.

Fly over the rainforest canopy on a zipline, then slow down for a wildlife-spotting boat ride on the canals.

Snorkel alongside wild sea turtles, then relax at Grote Knip, one of Curacao's prettiest beaches. Underwater photos are included.

A small-group day covering Curacao's best: colorful Willemstad, the island's countryside, beaches and lookouts.

Take the wheel of an off-road buggy on dirt trails around Willemstad, with a stop to cool off at the beach.

A small-group boat trip to snorkel two spots in Bonaire's protected marine park, famous for some of the healthiest reefs in the Caribbean.

Race across the flat island on a three-wheeled landsailer powered by Bonaire's steady trade winds. A one-of-a-kind activity with a perfect 5-star rating.

See both ends of Bonaire in three hours: flamingos, salt pans, slave huts and the wild northern coast, with a local guide.

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.