
1) Island of Spain 2) Island of the Bay of Biscay
Found on
https://www.crosswordclues.com/clue/gaztelugatxe

Gaztelugatxe is an islet on the coast of Biscay belonging to the municipality of Bermeo, Basque Country (Spain). It is connected to the mainland by a man-made bridge. On top of the island stands a hermitage (named Gaztelugatxeko Doniene in Basque; San Juan de Gaztelugatxe in Spanish), dedicated to John the Baptist, that dates from the 10th century...
Found on
http://en.wikipedia.org/wiki/Gaztelugatxe
No exact match found.