Ardois'alle

Ardois'Alle is a unique heritage site in Alle-sur-Semois, Belgium, featuring a historic abandoned slate mine that closed in 1948 and was reopened to the public in 2012. Visitors can explore the underground mine alongside an active slate quarry and museum exhibits documenting the history of the regional slate industry.

Address

12, rue de Reposseau
Alle-sur-Semois
Namur
5550
Belgium

Opening Hours

Weekends & school holidays: 10:00–16:30. Visit times: 10:00, 11:00, 13:30, 14:30, 15:30, 16:30

April 1 – October 31 (closed November–March for bat hibernation)

Admission

Students: 8 EUR

Children (under 12): 7 EUR

Groups (10+): 7.50 EUR

Free for children under 6

Adults: 9 EUR