wo, 04 oktober
During the winter months the National Mining Museum is open every second Sunday of every month for one visit at 2:30 pm.
A reservation is not necessary.
The museum is open all year round for groups of 16 people or more upon reservation (exept: on Mondays; November 1st; December 4th; from December 24th to January 1st included).
The reservation form you find here:
vr, 18 augustus
di, 08 augustus