Bert had to play with his concert band in the marl quarry before and after Mass. I accompanied him to Geulhem were there is a hidden church inside the quarry dating from the time of the French revolution, to wich I was very curious.
Tonight I found out that the church and the cave houses attached are open to visit on boxing day, but we didn't know that earlier.
On https://youtu.be/5HF1f0LJVLc you can find a short musical impression.
We saw the steam train and I couldn't resist taking a blip.