Entrance Tunnel

Secret Nuclear Bunker
Kelvedon Hall Lane
Kelvedon Hatch
Brentwood
Essex CM14 5TL

If using GPS please use

CM15 0LA

Access only via A128

Note: Sat Nav may drop short of the main entrance. Continue until you see brown signs on A128

Tel: 01277 364883

Please note: The Secret Nuclear Bunker will be closed for tours from 26th October 2024 to the 2nd November 2024 inclusive. We will reopen on 3rd November 2024.

March 1st to October 31st

Weekdays:
10.00am to 4pm
Weekends & Bank Holidays:
10.00am to 5pm

November 1st to end of February

Thursday to Sunday:
10.00am to 4pm
(Usually open during school holidays)

The last entry is usually 1 hour before closing time.

Adults: £12

Children (5-16 Years): £10

Family (up to 2 Adults + 2 Children): £30

Group prices min 15:
Adult £11 pp
Child £9 pp

Please note: Sometimes being underground there is no WiFi signal for card payment. As payment is at the end we strongly recommend you bring some cash to save embarrassment.