Stretching from the fishing village of Puerto Morelos to the biosphere reserve of Sian Ka'an, the Mayan Riviera offers an unforgettable Caribbean coastline experience. Divers and snorkelers will be dazzled by the wrecks of Xcaret and the Puerto Morelos reef. Use a zip line to descend into the sacred subterranean caverns of LabnaHa Eco Park, where you can snorkel an underground river under a canopy of stalactites. The nearby Tulum Monkey Sanctuary will put you in a playful mood.

Most visitors to Playa Paraiso stay at one of the five huge Iberostar-branded resorts in town. Judging from the TripAdvisor reviews, everyone from honeymooners to families with kids can have a blast at the properties’ beaches and pools. Two excellent golf courses are also located in town.

One of the top diving destinations in the world for its bright storybook coral reefs, the island of Cozumel is also home to a variety of natural beaches. Choose a beach with soft white sand for relaxing, or snorkel off a rockier vista. A destination for both adventure and romance, Cozumel has a year-round Caribbean climate, untrammeled jungle and abundant nightlife.

Puerto Morelos, a peaceful village on the Mayan Riviera, is a place to experience the genuine Yucatan. Puerto Morelos makes an excellent base if you’re looking for someplace quieter than glitzy hotspots like Cancun and Playa del Carmen. Government eco-reserve designations protect the reef and mangroves—and the village itself—from development. Outdoor options range from thrilling jungle and diving adventures to serene bike rides or moped explorations.

Tulum is relaxation and romance with an ancient angle. Guests can enjoy modern takes on traditional Mayan massage and spa treatments, or sunbathe on gorgeous Yucatan beaches within site of well-preserved ancient ruins. A rare mix of beach, archeology and village, Tulum is a romantic getaway like no other.

It’s not just for spring-breakers. Cancun, with its golden beaches and perfect climate, is the premiere coastal destination in Mexico. And while there is certainly a 365-day party available for college students, resorts cater well to families and to those seeking solitude. This Yucatan paradise is also the gateway to the ruins of Tulum and Chichén Itzá.

Just north of Cancun, this seaside resort community is a far cry from the spring-break crowd. Bordered on one side by the Mexican Caribbean and the other by a wetlands wildlife preserve, the vibe in Playa Mujeres is one of laid-back luxury in a natural, untouched landscape. Unlike many other such tranquil places, Playa Mujeres is not a pain to get to. It's an easy ride from Cancun airport.

Isla Mujeres offers a wide variety of tempting options for beach lovers, and is a relative bargain. Snorkel with tropical fish amid coral reefs, skim the blue waters by kayak or boat, or windsurf along the shores of soft, sandy beaches. On land, you can sunbathe, dine on seafood, dance to Latin rhythms, tour on a moped or belly up to the bar for fresh, delicious drinks.

Cuba's top beach destination sits on a 13-mile-long peninsula with powder soft sands lapped by waters of the Kawama Channel. Resort hotels teem along the shore that U.S. celebrities and gangsters, including Capone, discovered in the 1920s. Clubs and bars provide mojitos and merriment, after long days baking on the beach, golfing, diving or deep sea fishing. Rent a scooter or hop aboard an open-air tourist train or bus to see more of this stunning spot. Caves, keys and virgin forest add to the area's allure.

U.S. citizens still need to jump through a few hoops to visit Cuba, but as visitors from around the world know, this island offers some amazing opportunities for cultural exchange. Havana is a mix of old-world architecture and of-the-moment culture. Head out of the capital city to the small town of Trinidad to see more Spanish colonial architecture. It’s a UNESCO World Heritage Site and a fantastic home base for a visit to the Valley of the Sugar Mills, a pocket of land that formerly served as the centre of Cuba’s sugar industry.

Cayo Coco, an island just north of mainland Cuba, has some of the world’s most gorgeous beaches—think superfine white sand and shallow, clear water. It’s popular with European travelers seeking a sunny escape at one of the island’s beach-side resorts. Snorkeling and diving are fantastic.

With nine bays and 36 beaches, Huatulco is ideal for anyone who loves the sun. It's not an overdeveloped resort town, but the hotels are comfortable—even luxurious. Ecotourism is gaining in popularity, so take a break from sunbathing and try river rafting or a hike through the jungle.

Meaning “place of divers,” Bucerias on Mexico’s Pacific Coast is a charming antidote to the hustle and bustle of nearby Puerto Vallarta. You’ll meet the friendly locals and enjoy beautiful beaches, fantastic dining, outdoor activities and art galleries. Locals congregate in the small plaza in the centre of town or head for the beach for some sun and unfettered mountain and bay views. Beyond the beaches of Bucerias, you’ll find superb dining, flea markets laden with special treasures, art galleries, and pubs. Once you’ve tired of the sun, meander through the flea market off the main plaza and tour the residential side of Bucerias, complete with boutique shopping and quality restaurants like La Quinta di Francesco and Adriatico. Some of the best art galleries in town include Splurge Art Gallery, showcasing emerging local artists and designer pewter. On Thursday evenings, participate in the local art walk, and on Sundays, visit the authentic Mexican market. From Bucerias, explore other Riviera Nayarit locations such as Savulita, Punta Mita and San Francisco – they’re all accessible by cheap, frequent bus service.

A charming fishing village, Sayulita is a hidden gem with picturesque beaches, charming restaurants and great food. Unlike some other Mexican towns, tourists mingle with locals in a relaxed atmosphere, without the hustle and bustle of major touristy resorts. For those seeking more nightlife, Puerto Vallarta is a mere 30 minutes away.

Get the experience of visiting two island colonies in the same 37 square miles. Saint Maarten/Saint Martin's spicy marriage of Caribbean, French and Dutch cultures matches its physical diversity: the island is both urban and untamed, with rain forest-like landscapes, white beaches, and amazing caves and wildlife.

Is there any possible way Las Vegas could not be on our "best nightlife" list? The only way we could possibly omit it is on a technicality—since you can do pretty much anything 24/7 in Vegas, it might be wrong to call it "nightlife."

If watching the sunrise from atop a 10,000-foot volcano, swimming under waterfalls, hiking through craters and luxuriating on white-, red- and even black-sand beaches sounds like paradise, then Maui awaits. Maui is the place to surf and windsurf. Or hop a catamaran to scuba and snorkel on Molokini Island, a crater emerging from the sea that hosts a wealth of marine life. Golf, fine dining, a winery, museums and sipping a mai tai on the beach round out the perfect tropical holiday.