The Portupekoleze arch-cave, located in the Urbasa mountain range, is the spectacular result of water erosion, which over the millennia has created this enormous arch in the rock.
A beautiful natural place in a very picturesque environment with a variety of trails to get here. This place marks the source of the Iribas river that downstream joins the Ibaia river to become the well-known Larraun.
Nice waterfall on the bed of the Larraun Ibaia river. It is one of the attractions on the itinerary of the Vía Verde de Plazaola, a very picturesque route that you cannot miss.