Culture-seekers will be charmed be La Isla's heritage and history, from Old San Juan's charms to folk art and festivals in the outlying towns. You can drive round Puerto Rico in a day, but take your time. Coffee plantations, colonial towns, beaches, bars and restaurants wait to be explored. Old San Juan, with famed Castillo de San Felipe del Morro, is an atmospheric place to wander. Experience life at a different pace by rainforest hiking, scuba diving or swimming Vieques' glowing bioluminescent lagoon.

Located on Puerto Rico’s north coast, Dorado is a resort town of relatively recent vintage. You’ll find luxury hotels and several championship golf courses. Of course, if you’re used to your local, scruffy public course, your score might suffer—gorgeous ocean views can be quite a distraction.

The tiny hamlet of Jaco is located in the Pacific Coast province of Puntarenas, Costa Rica. It’s the ultimate hideaway for sun seekers and active travelers, with cinnamon-hued volcanic-sand beaches, lush green rain forest and verdant mountains. Surfers flock here from around the world, but families, and honeymooners also find much to love, thanks to the multitude of beaches, outdoor activities, dining, shopping and nightlife. Explore the Costa Rican rain forest by horseback, learning about the flora and fauna in this impressive eco-system. Take an ATV tour to beaches, remote villages and waterfalls. Try your hand at sport fishing, paragliding, sea kayaking or even bungee jumping. Spend an afternoon at the Pura Vida Gardens and Waterfalls, where you’ll find millions of plants, flowers and orchids from around the world. Zip line through the jungle, play a round of golf or take an aerial tram tour of the rain forest. Expert surfers will want to check out La Roca Loca and Playa Hermosa for a challenge.

Spa-goers have flocked to Carlsbad since its mineral spring was discovered in the late 19th century. Today, you can visit the site of the original well, but you can do much more than just "taking the waters"—Carlsbad’s spas offer world-class services.

The historic quarter of Colonia del Sacramento, founded in 1680, evokes old Lisbon with its Portuguese-influenced architecture and winding streets. The area, located in southwestern Uruguay on the Rio de la Plata, was named a UNESCO World Heritage site in 1995. It's an easy day trip by ferry from Buenos Aires, making the beaches a popular Argentinean escape. Major sights include Iglesia Matriz, the country's oldest church, the Municipal Museum and a 17th-century port jutting into the river.