exist almost anywhere else on our planet. >> the llanganates mountains is a wild place in that it is completely roadless. it's vast, impenetrable jungle with 14,000-foot ridge lines going in, surrounded by a 20,000-foot volcano. the topography of this area is like none other. what we're attempting to do here is basically be the first people, the first known group to cross the llanganates via the chalupas river. >> it's crossing this part of the jungle that's pretty impenetrable. some people have tried to cross there by foot, and it hasn't worked. we know it will be big and complicated and remote and continuous, and i think that makes it the highest difficulty on the hiking scale.