- A discovery tour for the brave of 3 to 3.5h using torch lights
- Part of the tour takes you into unlit corridors . A torch light is mandatory and can be purchased at the ticket office
- This tour requires a long underground walk with many stairs to reach the Albert Canal
- Visit all three floors of the Canal Nord bunker. On the upper floor, and with some effort, you can sit in the machine gun dome, looking out over the Albert Canal like the soldiers from the garrison in 1940
- Participants must be in good physical condition and not suffer from claustrophobia