Lake Arenal is a large artificial lake located in Costa Rica, covering an area of approximately 30 square kilometers. It was created in the 1970s by damming the Arenal River to generate hydroelectric power. The lake is surrounded by lush rainforests and offers stunning views of the nearby Arenal Volcano. The lake is a popular destination for various recreational activities, including fishing, kayaking, and windsurfing. Its unique ecosystem supports diverse wildlife, making it a great spot for birdwatching. Additionally, the area around Lake Arenal features numerous hotels and restaurants, attracting both tourists and locals.