We find ourselves faced with the biggest natural lake in the Basque Country, very close to the Añana Salt Pans, and located at an altitude of 680m, in the Alavan municipality of Lantarón. This is an easy circular route to discover Añana Salt Pans with a dog: 10.5km to enjoy the views of the Salt Valley and walk round the Caicedo-Yuso Lake, a spectacular natural landscape.