Hiking up a volcano. Mount Ngauruhoe is the famous volcano tourists love to climb. In the films based on Tolkien's books, this volcano was the centre of Mordor, the so-called 'Mount Doom', where the Hobbits brought the ring. If you're able to climb to the summit of a volcano on Tenerife, here you'll need to really prepare yourself. Take care of your equipment and be ready for a challenging adventure. The Tongariro Crossing track, at a length of 19km, is not an easy trail for everyone to follow, especially as not type of transport operates here. The journey itself takes about four hours, and then the same on the way back.