Water and forest merge at the Domiko reservoir, forming a truly beautiful natural environment. Although it is called a reservoir, it is actually two swamps, where bathing is not allowed.
The reservoir is located near the Agiña pass, where there is a large megalithic station. The countryside is beautiful and an ideal destination for a pleasant trip. It is even more spectacular in the autumn, when red and ochre colours dominate the landscape. Among the trees that make up this forest, there is a red sequoia alone at the end of the reservoir, the highest of all the specimens declared as Natural Monuments in Navarre.