San Juan de Gaztelugatxe is a small island that belongs Bermeo, Euskadi. On the top of this island, connected to the mainland by 241 steps, there is a church dedicated to Saint John. It dates from the 10th century but some other historians say it dates from the 9th century. It’s a protected biotope with another island in the proximity called Akatx Uhartea. This area extends from Bakio until cape Matxitxako, on Gulf of Biscay.
Gaztelugatxe has been a place for pirates, covens and legends. Therefore it’s not an unusual place to film Game of Thrones showing how Dragonstone looks like. Do not forget to ring the hermitage bell three times in order to attract good luck and chase away evil spirits.