Guided tour in Luxembourgish & French

Underground tour of the former slate quarries

Guided Tour: “The World of Slate – An Underground Journey of Discovery”

������ Duration: 2 hours

������️ Language: Luxemburgish & French

������️ Price:. €15 (Adults), €12 (Seniors 65+ & Students), €10 (Teenagers 12–17), €8 (Children 4–11)

⚠️ For safety reasons, children under 4 years of age are not permitted in the mine. We recommend wearing a jacket and sturdy footwear.

������ Advance booking required (places are limited) : info@ardoise.lu // +352 23 640 141 // https://webshop.ardoise.lu/exhibitions/overview

Step into a mysterious world deep beneath the earth’s surface.

This special guided tour takes you through the disused “Johanna” visitor mine — descending to a depth of 42 metres. You’ll make your way down over 370 steps into a fascinating underground realm of dark slate, past breathtaking man-made walls, thousand-year-old treasures, and mystical groundwater.

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Accompanied by expert guides, you’ll discover captivating insights into the formation of slate, its significance for the region, and the hidden world that lies deep inside the mountain.

A journey for all the senses – mystical, cool, silent, and unforgettable.