Other activities on offer here abseiling. It is located in the middle of Aibonito and Barranquitas and as the Cordillera Central. It's dense vegetation and the canyon itself is 4.5 miles long and reaches 5-800 meters. His climbing skills will be tested.
Caving is another activity that Puerto Rico is known for. It is the country with the third largest underground river caves in the world. For a mild version of this, you need the Rio Camuy Caves, located on the north coast to visit. You can also test their skills rappel.
Free camping can be quite adventurous. How about a boat ride through the night on the stormy waters of the Mona Passage and after camping on the uninhabited island of Mona? This is the subtropical island 20 miles of coastline and is usually filled with vertical cliffs over 200 meters high. Along the route you will encounter hogs and goats and even the Mona iguana. This creature can grow to four meters. You can also enjoy diving and kite in various locations in Puerto Rico.