Gorgeous walk with walkways, running parallel to the river Uhaitza. 4 kilometers in total (round trip) and a round trip lasts 2 hours. The tour begins through the forest, and as we move into the tunnel, a spectacular gorge emerges. Approximately 1 kilometer on slippery wooden walkways, first take a moment to appreciate the vertical walls. The wooden floor, the stone, that reaches a cascade of unknown origin. A few meters through a cave with stalactites ends the tour. Beautiful! Do the return journey. You should wear comfortable shoes and some warm clothes, even in summer. There is a lot of moisture, only a little light enters, leaving visitors prone to slipping.