The Alarcón Reservoir is a large artificial lake located in the province of Cuenca, Spain. It was created in the 1950s by damming the Júcar River and serves multiple purposes, including water supply, irrigation, and hydroelectric power generation. The reservoir is one of the largest in Spain, covering an area of approximately 3,200 hectares. Surrounded by scenic landscapes, the Alarcón Reservoir is also a popular spot for recreational activities such as fishing, boating, and hiking. The nearby Alarcón Castle, a historic site, adds to the area's appeal, attracting visitors interested in both nature and history.