I definitely recommend this wonderful place on Earth! Kostas House is located directly in Front of the Beach at the end of the bay of Vathy! If you are searching for a quite Place in a scenic area, this is definitely your Place! The House is very clean and well prepared. Kostas and his parents, who are living most of their Time in the back of the House, are perfect hosts! They cared about us in every Situation we needed their help. And they shared the specialties of Sifnos with us! We spend 5 nights at Kostas House and enjoyed every Minute! We would definitely come back!