Casa Sofia is a beautiful cave house centrally located with an amazing view of the caldera. There was plenty of room for a family of 4 (children 9 and 13). The house was clean and the beds were comfortable. The person (Vasili) who helps Maria was excellent, meeting us, helping us with our bags, recommending places to eat and to go, and making transportation arrangements. The apartment is a bit of a hike up and down steps and the bathroom is separated from the main house, but neither of these things were an issue for our family. With all of the assistance and excellent communication, we had a wonderful stay in the town of Oia. Thank you Maria and Vasili!