Satellites have detected large volumes of methane spewing from Mount Fentale’s crater following months of earthquakes that ...

At the park’s heart is the 5,357-foot Arenal Volcano, which is Costa Rica’s ... creating a picturesque turquoise lagoon in its crater. All that volcanic activity means that natural hot springs ...

Arenal Volcano, Costa Rica's best-known stratovolcano, stands more than 5,000 feet high and appears to touch the clouds. For the latter half of the 20th century, admirers traveled to its base in ...