Sheppey is an island located in the Thames Estuary in Kent, England. It is known for its rich history and natural beauty, featuring sandy beaches and marshlands. The island is connected to the mainland by the Sheppey Crossing, a road bridge that facilitates travel to and from the area. The largest town on the island is Sheerness, which has a significant naval history and was once a major shipbuilding center. Other towns include Minster and Queenborough. Sheppey is also home to several nature reserves, making it a popular destination for birdwatching and outdoor activities.