After passing “Cave 1” last year, we wanted to practise what we had learned. That’s why we’re going straight to the slate mine “Christine” in Willingen at the start of the year.

Together we go into the flooded corridors. It’s amazing how absolute darkness can be. All the more fascinating when you look at the remains from mining times on the dive.

It’s not easy to get your head in the right frame of mind to stay relaxed here.

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