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Visit the museum first for insights into scientific discoveries in the region. Audio commentary is available in English, German, and French.
Take the circular trail through approximately one kilometre of underground passages. Look for illuminated stalactites as you follow streams and waterfalls inside.
Prepare for a roughly one-hour loop with 297 steps and an 87-metre climb. The route remains damp, with temperatures holding between 8 and 10°C throughout.
The stairs mean this tour is not suitable for wheelchairs or strollers. You may use the free Saint Beatus app to learn more along the way.
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These tickets can't be rescheduled or cancelled.
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