On a bright and sunny late-summer day in September 2009, Friends of the CKA visited the site of a Cold War bunker in Woodlands Park, Gravesend.

After a lecture on the purpose of the Centre, the Friends were given a tour of the underground bunker. The tour concluded with a film produced by the UK Government during the cold war on how civilians could prepare for a nuclear attack.

The tour included visits to the Control rooms, Communications Centre, Power and Ventilation Plant, Dormitories, and Toilets.

The bunker was built in 1954 as a local Civil Defence Control Centre, and functioned until the late 1960's when it was turned into a council file store.

The heritage potential of the bunker was discovered in the early 1990s. In partnership with Gravesend Borough Council, Thames Defence Heritage refurbished and re-equipped the bunker as it was in the 1950s. The bunker opened to visitors in 2000.