Valle Gran Rey boasts the best pair of black sand beaches but with a good scattering of pebbly stretches. A similar mix, shorter but wider, exists at San Sebastian and is sheltered by being within the large enclosed harbour. Playa Santiago's offering varies from smooth rounded boulders - too heavy to lift - in the lee of the cliffs beneath the main hotel, to black sand, finer grey pebbles and shingle near the fishing port.