- A 3 to 3.5 hour visit for connaisseurs and technology buffs
- A guided tour of the interior of the fort's largest artillery cupola and the bunker below
- In-depth explanation of the ingenious mechanism of the artillery cupola and the loading system of the two 120mm FRC guns
- A detailed tour of the cupola itself, including both levels of the gun room
- This visit takes you into small and confined spaces and requires the use of iron ladders