This proposal is aimed for half a day, the purpose is to know El Mundo Perdido, half of the route is along single tracks. Very good and varied single tracks, good constant all mountain route in a beautiful natural environment.
It is possible at the beginning to meet black cows. THEY ARE NOT DANGEROUS, they are just peaceful cattle, although they may seem dangerous. An important point to mark is the Toll Blau, which you can reach leaving you bike in the rocky cave which can be reached on foot after a fold of rock in Mundo Perdido. From this cave a single track leaves on the left.