On the borders of the Urbasa y Andia Natural Park, the river Urederra rises. "Urederra" translates from Euskera as "beautiful water": the name itself offering a clue to the nature of the area. A vast forest of beech and oak dotted with ponds and waterfalls is the setting for the turquoise waters of the spring where the river is born. The limestone rock has been eroded into a plethora of hollows and crannies through which the water flows.

The Balcon de Pilatos (Pilate's balcony) overlooks the impressive cirque of rocks around the source. To reach the base of the waterfall, though, you need to take the path that starts from the town. In the rainy season the falls reach a height of 30 metres; even so, it is best to visit in autumn when the trees are dressed in yellows, reds and ochres. Along the trail, where over large birds of prey such as the vulture fly overhead, there are many viewpoints and lookouts offering the chance to get close to the river banks and view the different waterfalls. At the end, a wooden bridge leads right up to the Urederra, where the deafening noise of the spring floods the valley.