Very nice church at the entrance of Kastro, the loveliest village in Sifnos. This small chapel is built on a rock in the sea. Surprising that the strong wind and the waves haven't damaged it! I think this is a very nice place for weddings, but I don't think it is open very frequently. I asked a shop owner in Kastro and he told me that the church rarely opens, only in religious holidays sometimes. Too pity! This small church usully appears on postcards and guide books about Sifnos, and obviously it has become the symbol of the island!