Unique Experiences! Enjoy Puerto Rico’s beauty; explore Caves and Caverns while swimming at the Tanamá River. Enjoy our Cave-Tubing Plus to get a Real Nature Adventure. The Best thing to experience while being in Puerto Rico. Hiking in trail forest and exploring the Karst or limestone formation, swimming in natural pools and waterfalls, with the opportunity of descending into the caves with the Rappelling Adventure, and the Cave-Tubing experience. Nature Sacred Journey’s. with Tanama River Adventures!