Arenal Volcano at Sunset, Costa Rica

Arenal Volcano, a stratovolcano in Costa Rica, is seen at sunset from the Arenal Observatory Lodge. Originally established in 1944 as a research station for volcanologists, the lodge now serves as a hotel and a base for exploring the surrounding national park. The volcano is one of Costa Rica's most active and a significant natural landmark, drawing visitors interested in its geological activity and the lush rainforest ecosystem it dominates.