Cantabria

Spain

A rock near the cliffs that rise upon the water. The rocky sea floor, rises from about 20 metres, gently onto 8 or even less, depending on in wich part of the island you are (cliff part is shallower). Very near a underwater and coastal natural reserve (Oriñon and surroundings).
Normally, you dive around the island (that`s make it a good orientating dive), from one part to another. Be careful with the currents!
Big dive for newbies and children.
You can see big groups of pilchards, big rock fishes (sometimes; this is a heavely harpoon hunted place), and many rare rock inverts, specially just under the island; particularly good for photography.

By boat from Castro Urdiales

Isla Cotonera is also known as Cotonera Island.