The visit of the mine takes always place in groups, in the company of an expert guide. To make a tour visitors take their places on board of a train. The trips last approximately 20 minutes.

Once they are in the mine, visitors walk through the galleries, enjoying a guided tour which lasts approximately one hour and 30 minutes.

The average temperature in the mine is constant 10°C through out the year. It is therefore important that visitors wear warm clothing. Moving around in the galleries is without risk, but it is recommended that visitors wear flat- heeded shoes.

Dogs are not admitted. More informatios on the website www.mnm.lu .