Rena was amazing and goes above and beyond! You need locals or hotel receptionist to organize taxis or drivers if you are traveling between towns. Rena organized a taxi to pick us up at our hotel in Fira to bring us to Oia and also help us organize a taxi as we checked out from Oia to Kamari Beach. Literally without her we would had been much more difficult to get a great rate from each town. The cave had amazing view and was a great stay!