S’illot Gros, a small triangular-shaped island, is in the steep bay of Portitxol not far from the coast. The area where we anchor to start the dive is on a narrow ledge that connects the islet with the mainland with an average depth of 12 meters. As soon as the ledge ends the bottom falls to a depth of 30 meters. At the western end of the island we find a large cave that is not very deep, but large in height, its average depth being about 26 meters. When we reach the northern side of the island, the landscape is spectacular. Its walls fall vertically from the surface to 33 meters. These are full of inlays with beautifully coloured sponges, tapestries of yellow anemones and many different nudibranchs. You can also see moray eels and lobsters that inhabit the cracks and holes. In the blue we can see schools of amberjacks and tunas mainly in the months of September and October.