Below are some Links that are recommended by this Website:  Fort Amherst Online. The Royal Engineers Museum and Library Website.  A site dedicated to Tunnels and other Military/Industrial structures in Kent and elsewhere. The Palmerston Forts Society Website. Subterranean Exploration..Exploring disused Bunkers,Forts and Tunnels in and around Kent. Chathams bid for World Heritage status. The Historic Dockyard Chatham,Website. Medway Memories Website. Chislehurst Caves Sheppey Website Kent History Forum is an accommodation directory which lists hotels, B&Bs;, cottages and apartments in Kent. They also promote restaurants and provide tourist information.