There is something about white-blue-colours churches in Santorini...There are just everywhere!!! Small, big, hidden, majestic - you can see one at every corner or just in the middle of the nowhere while driving on the island. I started to wonder, why so many. One travel guide was saying that each fisherman who has escaped a big storm made one as a Thank you to his protector...
I also asked our Greek friend Klearchos who lives there the same question. His answer was a bit different. As Santorni is an active volcano, people do build a lot of churches in the hope that they will help them avoid a big eruption.