Access: Ribadesella, to about 95 kilometers of Gijón in direction this. In the extreme west of the beach of Santa Marina there is an explanatory panel. If it is watched towards the south, gray limestones of Carboniferous are descried that emphasize in the relief of the vertical wall.

Route: near the end of the stroll we found a alternancia of marls and limestones with interleave of arenaceous, that extends by the cliff towards the west. Sample diverse rich levels in very small lamelibranquios, as well as frequent cracks of drying and icnitas of dinosaurios. These appear in the surface of the layers like depressions of made oval contour or tridéctilo.

In the same slope to the cliff from the viewpoint of the end of the stroll some of these tracks can be seen. From and following about 150 meters towards the west by the base of the same one is here great laja of sandy limestone inclined to the sea about 80 degrees. On her there are several signs of footsteps of saurópodos (quadruped).