Opening hours summer season 2026
June 13-28: 11 am-4 pm daily
June 29 - August 2: 11 am - 6 pm daily
August 3-16: 11 am-4 pm daily
Guided tour every hour.
Engine start on Batterie Dietl
Friday 10. July 2026, 5:00 PM–5:30 PM
Sunday 26. July 2026, 2:00 PM–2:30 PM
Would you like to experience when we start the engine down in the basement of the gun bunker? The engine was manufactured by Maschinenwerke Mannheim in 1942 and powered the generator that supplied the bunker with electricity during the war. It is still working.
Come to see, hear and smell!
The event is suitable for the whole family and is especially fun for motor enthusiasts. Please note that the engine is quite noisy when running, and it can be cold inside the bunker — bring an extra jacket.
Communication in Norwegian.
Photos below: Karoline OA Pettersen
Ticket prices
Regular admission: adult 90 NOK, senior/student 70 NOK
Children under 18 have free regular admission.
Group entry (min. 10 paying): NOK 70 per person
Tickets are purchased at the entrance.