The highest point in the reserve is located inside a tropical cloud forest 1,570 meters above sea level,[1] rain occurs 8 months annually, between May and December. Cerro Arenal Natural Reserve is one of the smallest protected areas of Nicaragua and is abundant with flora and fauna.[2] Many animals are present throughout the reserve, animals such as monkeys, and armadillos. The reserve also contains the oldest oak trees in Central America.[1]