Absolutely recommendable tour for ambitious hikers, not for people with fear of heights or dizziness. We did the tour in the rain, works, but not recommended. The tunnels give the tour a certain mystical touch.
Anyone looking for a path at the exit of the tunnel is at a loss. It was not an easy path for us to find. That is why we are reversed again.But we discovered a hiding place from a GeoCash and put the paper back. Hermann & Eddy