– The Semi-submarine departs from the harbour. This unique vessel offers a pleasant and safe tour and is ideal for adults and children of all ages. It remains above sea level at all times, while its hull, the underwater observatory, is 1.5 meters (5 feet) below the surface. Through your own personal viewing window, you can watch an abundance of marine life. Since you can leave the cabin and walk on the deck at any time, you can also enjoy the spectacular view of the archipelago and Orebić. You can choose between day tours and night tours with underwater lights.