Fodor's Expert Review Poás Volcano National Park

This is widely regarded as Costa Rica's coolest volcano experience. An observation platform lets you peer right inside what is thought to be the largest active volcanic crater in the world. The ride up here is disarming: pleasant farms and lush green cloud forest line the volcano's slopes; friendly fruit and jam vendors along the road beckon you to stop and sample their wares. Only when you get to the bubbling, gurgling, smoking summit do you leave those pastoral scenes behind and stare into the crater. Arrive here as early as possible in the morning for the best views. Clouds occasionally move in as early as midmorning.

It's wise to step away from the crater and its fumes for fresh air at least once every 10 minutes, and a good place to take that break is the park's bustling visitor center—the country's best—with complete park information, a cafeteria, and a gift shop. The volcano features prominently on many itineraries of area tour operators. Increased volcanic activity in recent years forces periodic closure of the park. Check conditions before heading up here on your own.

Entries are timed and must be reserved and paid for in advance at the national parks website. You'll undergo a mandatory safety presentation on arrival and must wear a helmet during your visit. The park's famed hiking trails are closed at this writing.

For more information, see the color feature at the beginning of this chapter.