Are there more flamingos than people on Bonaire? It's possible, and it's part of this unspoiled island's appeal. Bring your binoculars and your scuba gear to make the most of Bonaire's natural charms: more than 200 different species of birds live here, and the island itself draws divers from around the world to its reef-lined coast, a National Maritime Park.

Ecotourism is alive and kicking on St. John. There's more than enough to do on land, from watching for wildlife in the national park to hiking miles of trails or strolling sandy white beaches. Hit the water for amazing snorkeling, swimming, even underwater photography—of course. This is the Caribbean, after all.

Turks and Caicos is an excellent destination for divers and snorklers. Smith’s Reef in Provo is one of the area’s most popular dive spots, thanks to a diverse collection of sea creatures in a spectrum of electric colors. For a completely different vibe, explore the black coral and submerged overhangs of Black Forest or kayak the bright turquoise waters of Chalk Sound. Both the Caicos Conch Farm and the bird sanctuary on uninhabited French Cay offer unique ways to commune with local wildlife.

In friendly Great Exuma, you'll want to be up early so you don't miss a moment outdoors. From fishing and sailing to snorkeling and windsurfing, there's almost too much to do. Design your own adventure and plunge in—particularly around Exuma Cays Land and Sea Park, where the scuba diving is world-class.

Powdery sand meets turquoise water in Santa Maria, where morna music pours from beachside bars just a short drive from Ilha do Sal's airport and capital city. Add the sun-and-saltwater resort scene to energetic nightlife, and you get one of Cape Verde’s most popular escapes.

Sunny Cancun has much more to offer than its party-town reputation might suggest. Plenty of gorgeous, drama-free family resorts cater to folks who want to experience the tropical Yucatan climate. There are significant Mayan ruins here, such as El Rey and the Yamil Lu’um, a crumbling tower of pale gray stone. Learn more about this ancient civilization at the Museo Maya de Cancun. For a literal taste of Mexico, take a tour of the Museo Sensorial del Tequila.

High in the cool hills, this colonial gem of cobblestone streets and picturesque churches inspires artists with its color, character and light. Baroque, neoclassical and neogothic mix in the city's buildings, notably at the pink stone 18th-century church on the Plaza Principal. Founded in 1542, the city is a mix of Hispanic and Mesoamerican influences.

The inland city of Guadalajara is bursting with history and culture. Many attractions are in the city's historic center and in the neighboring city of Zapopan. Museums, parks and churches flourish alongside bullfights, rodeos and soccer (futbol). Nearby are the towns of Tequila, where the liquor of the same name is produced, and Tlaquepaque and Tonala, where artisans create an abundance of Mexican handicrafts. Mariachi, which originated in the area, is a common sight and sound in Guadalajara.