Cool spot to visit in the North of Gran Canaria. Very easy to park. Entrance 3€, old road GC-291 going in the valley is a nice ride with great views.
More about this unique place via hellocanaryislands.com:
North Gran Canaria is home to one of the most spectacular archaeological sites in the Canary Islands due to its huge size: The Cenobio de Valeron. The pre-Hispanic Canarians used This giant communal granary to store their staple food. It comprises over 300-grain silos cut into the soft rock and linked on several levels. It was a significant engineering feat and worth a visit due to its cultural and historical value to Gran Canaria.