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For groups of minimum 15 paying participants. There is no limit to the number of participants.

You choose from 5 different types of guided tours depending on the interest of the group and the time available. Each type of tour has a starting price for 15 paying participants and there is an additional cost for each additional participant. The number of guides is determined by the number of participants.

A group visit is always by reservation and can be booked every day of the year, except on Mondays and some closing days. Reservations are taken till 10 days in advance.
Your reservation request will be confirmed by our secretariat as soon as possible.

Type 3: In the tunnel system and to the command post
Visit duration: 2 hours
Type 4: Through the tunnel system to an artillery casemate
Visit duration: 2h30
Type 5: A total experience: the fortress inside and out
Visit duration: 3h30

The underground barracks are heated. The tunnel system has a constant temperature of 11°C. Consider wearing a sweater and closed shoes.

The underground barracks and museum are accessible by wheelchair (type 1).
Due to corona, lift use is not possible and the visits of type 1 and type 2 are not accessible with a wheelchair.

The artillery casemate and the upper plateau are not accessible by wheelchair  (type 4 and type 5).