This cave house is at a great location in Oia. You can watch almost the entire process of sunset on your private patio, with a drink in hand. Or, if you have to watch the entirety, the house is two minutes of walk from the castle, the best viewing location. The temperature in the house is constantly at 18 degrees Celsius. The sun outside can be super hot, but you cool down immediately when you walk in the door. No need of any air conditioning. Katerina, the host is very friendly and responsive. She always answers very quickly. Our ferry on the arrival date was delayed by more than one hour. She was very patient waiting for us. She gave us many helpful information while guiding us through the winding paths in Oia, like the best restaurant for sunset dining, where to shop for groceries. Then she marked them on a map. She even prepared a bottle of water and some orange juice in the fridge. Couldn’t be better than drinking a cup of icy cold water on a sunny Santorini day. Our departure was very early in the morning. Katerina arranged a private driver to take us to the airport at 5:30am.