Built in 1930, it covers an area of 930 hectares and can hold 84 Hm3 of water. This scenario of turquoise blue water is chosen by visitors and residents for a range of activities that can be enjoyed on the reservoir and in its surroundings. Each season of the year shows the visitor a new side to the Alloz reservoir.
In spring and summer it becomes the ideal spot for learning to sail or windsurf receiving a "baptizm"
or enjoying the sport if you are experienced, renting distintas embarcaciones, como piraguas, tablas de windsurf y pequeños barcos de vela. The Aritzaleku
campsite in Lerate is the main place to carry out water-based and other activities.
Others common sports here are surfing and windsurf. The Alloz reservoir
is ideal for surfing and windsurfing, as there are frequently force three or four winds. The spot is also popular for fishing enthusiasts who tend to go down to the tail end of the reservoir where they mainly catch trout, barbel and carp