Sully Island is a small uninhabited island off the south coast of Wales between Cardiff and Barry. A local post operated to the mainland from 1967 to 1970 for those intrepid enough to venture across to post a letter. I say intrepid because firstly one can only cross to Sully on foot at the lowest tides and the postbox is at the far end of the island. The tides that protect its privacy are amongst to fastest and most dangerous in the world. If you dally admiring the view by the postbox you will get cut off for the next 11 hours or so.
The stamps show the history of the island. Featured are Alfredo de Marisco the 13th Century pirate who had Sully as a base, the smugglers of the 1700s, and the Antarctic survey vessel Scotia which its days on the beach. There is also a pair with what’s claimed to be a pirate map with a cryptic X marls the spot!