For the latter half of the 20th century, admirers traveled to its base in droves to catch a glimpse of its glowing rocks and the molten lava tumbling down its sides. But Arenal wasn't always ...

At the park’s heart is the 5,357-foot Arenal Volcano, which is Costa Rica’s most active volcano. During the day, smoke billows from the peak, while at night, you can see red lava pouring down ...

Volcanoes offer breath-taking views and thrilling adventures. Explore Iceland’s Thrihnukagigur magma chamber, Costa Rica’s ...

The most popular, Las Coladas, takes hikers on a 1.2-mile trek past moon-scape lava flows with epic views of Arenal. El Ceibo is even more scenic, a 1.8-mile path that winds through postcard ...