It is located in the vicinity of the point of the same name and is divided into two parts: the eastern, very small and rocky, and the western, somewhat larger and sandy.
Its name comes from the caves between the rocks at the tip of Somocuevas. Nearby there is an islet that is frequented by seagulls and cormorants.
It has a length of 100 meters and its access is through a staircase of 139 steps that descends from a high cliff located to the west of the beach. This staircase is reached by a narrow path that comes from the parking area located a few hundred meters from the stairs. The slope of access to the water is gentle and the waves are also gentle because it is protected from the open sea by an inlet. The bottom is partly rocky although fine sand is also abundant. It is frequented by nudists, it is not official nudist as such. It is freely accessible.
The surroundings are made up of Atlantic meadows and residential developments. To the west is the natural park of the Dunas de Liencres, one of the most important coastal points of the Cantabrian Sea.