Lake Arreo

About

Lake Arreo (Basque: Arreoko aintzira, Lago de Arreo), also known as the Caicedo-Yuso Lake (Basque: Caicedo-Yusoko aintzira, Lago de Caicedo-Yuso) is a lake in the province of Álava, Basque Country, Spain. With a surface of 6.5 ha (16 acres), it is the only natural lake in the Basque Country.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.