Tod Head Lighthouse. This is a spectacular site with a tough walk back up a cliff path at the end. The dive is round the larger island cutting through it in an underwater cave. From the small harbour head out on the right, staying shallow, looking for the steep sided narrow gully between the island and the mainland. Drop into the gully to 8m keeping to the left and look for the cave entrance at 4-5m. Exit cave then carry on round the island. Photo by Pauline Mair.