The right bank of the ria is spotted with small vessels and offers a very pleasant walk. The estuary forms a splendid natural bay which includes the beaches of Gorliz and Plentzia. In Gorliz, at the end of the promenade, we will find the Petrified Dunes, of great geological value. Leaving the beach behind, a path will take us to Billano Cape and its lighthouse, which houses an old defence battery, some bunkers and a rusty cannon.