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Underground visit

opening times

  • July August : Every day from 10:00 am to 6:30 pm
  • April May June Sept Oct: 10:00 am to 5:30 pm (6:30 pm at weekends) Closed on Mondays and May 1.
  • February March November: 10:00 am to 4:30 pm (closed on Mondays)
  • December January: Annual shutdown

Public holidays: open on public holidays except May 1.

Allow 1 hour 15 mins for the visit plus 1 to 2 hours for the park.

prices

Audio guided tour + park

Guided tour + parc

Adult

 € 11,00

 € 12,00

Reduced price*
Child 5-16 years old

 € 7,00

 € 9,00

Child less than 5 years old

Free

Free

Family (2 adults + 2 children)

 € 30,00

 € 36,00


*Job seekers, students and persons with reduced mobility. Justification required.

Audio guide language : French for children and adults. English, German, Dutch.    

Recommendations

Underground temperature 9 ° C: Bring warm clothing.
Low lighting: Take a torch.