The Tanamá River has adventure written all over it, but it’s definitely not for the faint of heart or out of shape

A local adventure company will take you on a journey like no other. It begins along a beautiful trail that borders the Arecibo Observatory, the largest radar/radio telescope in the world, which is nestled in a natural sinkhole in the primeval karst forest.

You will slide-descend for 800 feet to land in the cool waters of the Tanamá River then body raft down the river through caves and canyons. At last you will emerge from Ventana (Window) Cave, to be dazzled by the beauty of some of the most striking valleys in Puerto Rico.

If you’re really wild at heart, spend the night along the riverbank. Set up camp with your fellow travelers, make a bonfire and cook your own food. Late at night the sky will appear brighter than any place in the universe.

How to Get There

The Tanamá River is south of Arecibo in the Central Mountain Range. For information on guides and adventure tours, call Aventuras Tierra Adentro’s Outdoor Sports Shop (787) 766-0470, Fax (787) 754-7543.