The Ullibarri-Gamboa reservoir has three inland beaches where visitors can sunbathe, swim or simply enjoy the silence and the beauty of a sunset. These beaches, whose quality is recognized with a blue flag, are located in the Provincial Parks of Garaio and Landa, and offer various services.
Located on the Plains of Álava, the reservoir collects water from the basin of the river Zadorra. This river basin channels the tributaries and streams from the slopes of the watershed to the north of Álava, with the Elgeamendi, Aizkorri and Aratz mountains; and from the Sierra de Entzia to the south.
The location of the reservoir in a transition area halfway between the oceanic influence and the continental climate favours biodiversity, with the presence of species from different environments. Copses of gall oaks, riverbank vegetation marking out the paths of streams and rivers, aquatic environments with broad stretches of water, farmland and small hamlets make human activity compatible with the preservation of the natural resources.
The information office is located in Garaio Provincial Park, providing information on the Ullíbarri-Gamboa reservoir environment as well as on all the activities that can be carried out and the services provided.