Arenal Volcano National Park
The Arenal Volcano National Park was founded in 1994 and covers an area of 29,959 acres (12,124 hectares). It is right next to the Tenorio Volcano National Park. Both parks are part of the Arenal-Tilarán Nature Reserve. In this area are located the two volcanoes as well as the extinct volcano Cerro Chato right next to the volcano Arenal. None of these volcanoes is currently active.
The Arenal is the youngest volcano in Costa Rica and with its almost perfect cone shape it rises 5,357 ft (1,633 meters) above sea level. After its last major eruption in 1968, lava flows were regularly observed. In 2010 the Arenal volcano showed his last activity and since then he has been inactive. At the foot of the Arenal is the artificial Arenal Lake, which is the largest freshwater collection in the country. 40 % of the electric power in Costa Rica is produced here. The park houses large areas of tropical rainforest.