El Yunque National Rain Forest, is located 40 km southeast of San Juan in the Sierra de Luquillo. Formerly known as the Caribbean National Forest; El Yunque received its current name from the ancient Indian spirit Yunquiye (Forest of Clouds).
Originally set aside by the Spanish Crown in 1876, the forest represents one of the oldest reserves in the Western Hemisphere. El Yunque contains over 240 species of trees and plants, including 26 species that are found nowhere else on earth. Dominating a great portion of the forest is the mountain top which covers 28,000 acres and stands 3,543 feet above sea level.
El Yunque is divided into four forests: Tabonuco Forest, Palo Colorado Forest, Palma Sierra Forest and En Las Nubes Forest. These forests combine together to form the Luquillo range providing visitors various activities and sights. El Yunque is considered the rainiest of all the National Forests with more than 100 billion gallons of rainwater per year. The climate can range from rain forest conditions to semi-desert within short distances from each other.
There is much to see and do. I recommend taking a dip in the waterfall and walking the trails for some beautiful memorable sights that cannot be found anywhere else.