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.

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 Aventuras mingles tropical beauty with the riches of the sea. Beaches are fantastic, with powdery, white sand, and there's excellent fishing as well. For a fun day, explore the eco-archaeological park Xcaret, or snorkel at Xel-ha, a natural inlet water park. The Mayan ruins at Tulum, only 25 minutes away, are another must-see.

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.

Akumal means "Place of the Turtle" in the Mayan language, and if you snorkel here, you just might see one swimming alongside you. (Don’t touch it, though. That’s prohibited by law.) You’ll definitely see coral and beautiful fish in the clear, sparkling waters. This tourist-friendly little town is about an hour south of Cancun—but it seems light-years away.

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.

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.

Christ Church is located on the southern end of the island of Barbados, on the vibrant South Coast. Have fun travelling from beach to beach in a reggae boogie-bus and in the evening, charter a sunset cruise or head out to a seaside club and dance the night away. Sunbathe, snorkel or jet ski at a choice of beaches. If you prefer a quieter beach setting, it’s very easy to find one. The island has many long, isolated stretches of perfect white sand and crystal blue waters.

An hour or two south of Recife, Porto de Galinhas was made for the not-so-extreme tourist. Raves one traveller, "It's what it doesn't have that makes it great:" no heavy traffic, no nightlife to speak of. Explore the natural tidal pools that form in the reef, feeding fish that swim all around you; or ride a dune buggy to romantic Muro Alto beach. Or skip all that and doze in a hammock by the warm, green, clear Atlantic.

Named for a local swamp fish, Paraty sits on Brazil's southeastern coast, 125 miles south of Rio, with the Bocaino Mountains at its back. The small colonial town's center is a national historic monument with well-preserved buildings on its pedestrian-only streets. Take a boat trip out into the bay to the flotillas of islands and coves nearby. Explore sugarcane plantations and hike or take a train through Atlantica Forest. Keep an eye out for the monkeys that roam the cobblestone streets.

Porto Alegre is a cultural heavyweight—from museums to an edgy music scene, the city overflows with creativity. The best show of all may be sunset on the Guaiba River, which brings a nightly audience to the waterfront.