The Irazú Volcano is the highest active volcano in Costa Rica at 3,342 meters. The national park protects a 2,309-hectare area of land around the base of the volcano. The summit of the volcano is a lunar-like landscape with craters. Irazú's Principal Crater is 1,050 meters in diameter and 300 meters deep, and the Diego de la Haya Crater is considerably smaller and contains a small lime-green lake that sometimes appears red.
From the summit, it's possible to look out to the Pacific and Caribbean on clear days.
