Canadian Forces Station Carp (also CFS Carp and commonly known as The Diefenbunker) is a former Canadian military facility located in the rural farming community of Carp, Ontario, approximately 30 km (19 mi) west of downtown Ottawa. CFS Carp was decommissioned in 1994. It was not until 1998 that it was reopened as a museum and designated a National Historic Site of Canada.Currently, the facility operates as a museum and is open year round for tours.