Fidra is a currently uninhabited island in the Firth of Forth, 4 kilometres northwest of North Berwick, on the east coast of Scotland. The island is an RSPB Scotland nature reserve. Like the other islands near North Berwick, Fidra is the result of volcanic activity around 335 million years ago. Fidra consists of three sections; a hill at one end with the lighthouse on it; …Fidra is a currently uninhabited island in the Firth of Forth, 4 kilometres northwest of North Berwick, on the east coast of Scotland. The island is an RSPB Scotland nature reserve. Like the other islands near North Berwick, Fidra is the result of volcanic activity around 335 million years ago. Fidra consists of three sections; a hill at one end with the lighthouse on it; a low-lying section in the middle, effectively an isthmus; and a rocky stack at the other end.