is now visible of Grain Fort above the ground. In addition to the keep's demolition, the spaces within which the surface buildings once stood have been filled with rubble and rubbish. The fort's earthworks and a brick revetment still survive and a path links the concrete aprons of the infilled gun emplacements. The front caponiers are buried but have also survived mostly intact. Magazines and tunnels still exist within the subsurface structure and have been visited by urban explorers. Many of the fittings are reported to still survive. The site of the fort is now within the Isle of Grain Coastal Park, which is managed by the Friends of the Coastal Park in partnership with its owners, St James Parish Council. The fort is part of a scheduled monument designated in 1976 to cover "coastal artillery defences on the Isle of Grain, immediately east and south east of Grain village". References Bibliography External links Grain Fort Victorian Forts datasheet Grain Forts in Medway Forts on the River Thames 1861 establishments in England