Upnor Castle2013-04-12 Set in tranquil grounds adjoining a riverside village, this rare example of an Elizabethan artillery fort was begun in 1559 and redeveloped in 1599-1601, to protect warships at Chatham dockyards.How to find usUpnor CastleKent ME2 4XGVisit the attraction’s website ↗Get directions ↗