GORLIZ

TOWARDS THE CRETACEOUS LIGHTHOUSE

CABO BILLAO GROUPING

The materials that make up the Cabo Billao Place of Geologic Interest were formed in the Cretaceous period, 110 - 90 million years ago, during a period of intense tectonic activity in the Basque-Cantabrian basin. Posterior collisions and the action of the waves moulded this part of the coast into the shape it has today.

Its geomorphology is especially interesting and worth noting, because it's an example of the powerful coastal dynamics that have given rise to very steep hard to access cliffs, pebble beaches and the island of Billao, which has resisted the raging wind and sea.