Cramond Island sits about a mile off the coast on the outskirts of Edinburgh. The Island can be reached on foot via a concrete causeway at low tide, and it is a popular spot for Edinburgers to visit. There is a long history of human use of the Island, but the most prominent human-made features date from the Second World War. The Island was part of a string of defenses designed to protect the Firth of Forth, and many of the concrete structures used to house searchlights, guns, stores, and generators remain. This uninhabited coastal environment is not the kind of place that you would expect to find graffiti, but it seems the smooth grey concrete is an irresistible canvas, with tags ranging from basic scrawls to elaborate designs covering every available surface. I was even more surprised to discover that quite a lot of the graffiti is political, turning this little island into a radical outpost.