Get to know the tropical river ecosystem, experience the tranquility of the forest while floating slowly down the Peñas Blancas River with the opportunity to observe many species of arboreal and aquatic animals such as: monkeys, sloths, iguanas, turtles, alligators and different types of birds such as herons, cormorants, American darters, and passerines, along with the possibility of observing a reptile species called the basilisk lizard, which is capable of walking on water. The interesting vegetation includes dense branches of ficus, luehea, and kapok trees full of lianas and epiphytic plants, which intersect from both sides of the river forming tunnels full of various shapes and exuberant green colors where very little sunlight gets through.