The white waves hitting the beaches in slow but powerful way.The western coast is a mixture of sand beaches and rocky cliff promontories: around Cabo da Roca, cliffs are more than 100 metres in height, and cut into crystalline rocks, composed of strongly foulded and faulted sedimentary units. These forms are disturbed by dikes and small beaches. This promontory of "high" beaches is the extreme western immersion of the ancient eruptive Sintra massif, as evident from the rose-coloured granite in the north and syenite of the Ribeira do Louriçal in the south.
http://en.wikipedia.org/wiki/Cabo_da_Roca
