South Essex and Essex Accommodation guide for Guest House, Camping & Caravan and Hotel Accommodation in South Essex, Essex and the East of England, UK. Whether you are visiting Essex to see the Southend Festival of the Air, or Foulness Island - you are sure to have a great day out in Essex. Foulness is an island on the east coast of Essex in England. It is separated from the mainland by narrow creeks. The large island had a usually resident population of 212 people in the 2001 census, who live in the settlements of Churchend and Courtsend, at the north end of Foulness. The island has a church, a general store and post office. The George and Dragon pub in Churchend closed in 2007. It is mostly marshland, although some areas are farmed. It is also known for its population of waders, including Avocets. The island is run by QinetiQ on behalf of the Ministry of Defence. Access to the island is only permitted with a pass, obtainable from Shoeburyness. It is sometimes opened to the public on special occasions.