times & prices
- July August : Every day from 10:00 am to 6:30 pm
- April May June September: 10:00 am to 5:30 pm (6:30 pm on weekends) - Closed on Mondays
- February March: 10:00 am to 4:30 pm - Closed on Mondays
- From 1st October to 6th November: 10:00 am to 5:30 pm - Closed on Mondays
- From 7th November to 31th January: Closing time - Open for groups of 15 and over, on request.
Public holidays: Closed on 1st May and opened on Easter Monday.
Allow 1 hour and 15 minutes for the visit, plus 1 to 2 hours for the park.
Audio guided tour + park
Guided tour + parc
Child less than 5 years old
Family (2 adults + 2 children)
*Job seekers, students and persons with reduced mobility. Proof required.
Audio guide language : French for children and adults. English, German, Dutch.
Underground temperature 9 ° C (48°F): Bring warm clothes.
Low lighting: Bring a flashlight.