This place is absolutely incredible. We spent two nights here towards the end of September but could have stayed forever. I can't speak highly enough of Giannis', Dana's and Dimitris' hospitality. The cave house is set back from the main walking street with gorgeous Caldera views, and famous Oia sunsets some ten steps around the corner. You won't want to leave the cave pool but you'll have to, so you can enjoy the hosts' excellent recommendations for food and activities. There's much more to be said but just book it and find out for yourself - Hector Cave House is an oasis of calm. We can't wait to come back!