Cala Vidre Sud is the south-side shore dive from Cala Vidre, a small sheltered cove below Sant Jordi d'Alfama Castle. The route follows the right-hand wall before opening onto sand, rock, and posidonia, so the underwater shape stays simple and easy to read. A few short rock recesses add interest, but the line stays simple if you keep out of any overhead pockets. Treat it as a calm-day beginner dive or snorkel outing rather than a long swim.