This is the best place to stay in Sifnos. Konstantinos, Sue and Voula were all wonderful with helpful tips and even aided in finding us a 50cc scooter to scoot around the island all week. Being in Kastro is the perfect balance between Apollonia and the more remote parts of the Island. The local coffee shop in the center of Kastro also made my stay extra enjoyable. Best capucines in Sifnos.