Natural Patrimony Beaches Barinatxe Large undeveloped beach which consists of fine golden sand. Annually, a nude race takes place consecrated internationally. Learn More about Barinatxe Arriatera-Atxabiribil Great beach, composed of fine sand and strong waves, perfect for surfing. Learn More about Arriatera-Atxabiribil Meñakoz Medium-sized beach, not urbanized formed by gravel and stone. You can practice nudism. Learn More about Meñakoz Tidal Platform Formed to back the cliffs from erosion of the waves. Archaeological Remains Munarrikolanda dolmens or settlement Kurtzio show that Sopela history dates back to prehistoric times, since in both fields you can see the remains of a settlement used by humans since prehistoric times. Peñas de Santa Marina They are small scarps with Urduliz shared. These rocks are siliceous.