We spent 6 nights at Eleni’s apartment in Kastro and enjoyed every moment. It was a highlight of our 6-week trip to the Cyclades. The traditional house has a great deal of charm, opening onto an old square in the front and with a balcony looking onto the sea at the back. The apartment is very well-equipped and Eleni and her husband go out of their way to ensure that you enjoy your stay. The Kastro itself is very picturesque and historic. It is wonderful to be there in the evening and early morning when most of the tourists have left. It is definitely the best place to stay in Sifnos. One of the best Airbnbs ever! We hope to return soon!