15 TopRated Tourist Attractions in Costa Rica | PlanetWare
· The Irazú Volcano is the highest active volcano in Costa Rica at 3,342 meters. The summit of the volcano is a lunarlike 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 limegreen lake that sometimes appears red.