Arenal Observatory Lodge sits on the southern flank of Arenal Volcano, overlooking Lake Arenal in Costa Rica's Alajuela province. The lodge began in 1987 as a research station built to house volcanologists monitoring Arenal's eruptions, which continued almost continuously from 1968 until 2010. Lake Arenal itself is artificial, formed in 1979 when a dam was built for hydroelectric power and now supplying a significant share of the country's electricity. The property later converted from a scientific outpost into a hotel, with trails leading through the surrounding rainforest toward the volcano's lower lava fields.
Dusk Over Lake Arenal from Arenal Observatory Lodge