Just read the comment about Panem Tours and thought I would add my experience of this company. We recently went to Lassi for two weeks and booked the island tour with the same office in Lassi. The aircon on the coach was not working and the day was very hot. At the first stop the coach broke down and we were stuck there for three hours instead of 45 minutes. The brakes needed repair. The terrain is mountainous with twisting roads and long drops to the side so dodgy brakes was not something you want to have. Eventually we got going again but the next stop was cut short. By the time we arrived at Melissani caves the sun had passed over the opening so we missed the best effect. After the Drogarati cave we decided we had had enough and got a taxi back to our hotel at a cost of 45 euros. The guide summed it up perfectly when she called it Faulty Tours. My advice, do not use this operator!!!