The Isle of Sheppey is an island located in the Thames Estuary in southeastern England. It is part of the Kent county and is known for its rich history and diverse wildlife. The island is approximately 26 square miles in size and features a mix of coastal landscapes, including sandy beaches and marshlands. Sheppey has several towns, including Sheerness, Queenborough, and Minster. The island is connected to the mainland by road and rail, making it accessible for visitors. It is also home to the Sheppey Crossing, a bridge that links the island to the rest of Kent.