If your preference in beaches runs towards the pristine and the natural, then consider El Confital.

In the past, hundreds of illegal houses were removed, and the beach and its surroundings were allowed to return to nature.
Confital is mostly rocky, interspersed with a few patches of golden sand.
From the end of the wooden boardwalk, the beach is nudist.
One of its attractions is one of the best tube waves in Europe, but, as the wave breaks over a reef, you need to be an experienced surfer in order to ride the wave safely.