An hour later and I'm clinging to a cable on the side of the mountain, treading a path so narrow my feet no longer fit side by side safely, but only one in front of the other. There is a steep, almost vertical drop to my right hand side. Indeed, at one point there is only a metal bar sticking out from the sheer rock, bridging the next bit of narrow path. Don't look down, I think. Hang on to the cable with both hands. Phew. Done.