Kaolinový důl / Clay mine [Exploration]

Kaolin clay mine from the second half of the 19th century. Originally there was almost 6 km of tunnels, some nearly 6 meters tall, usually around 15 meters underground. All made by hand tools. Only about 3,5km were accessible when I got there in 2018 because of cave-ins that occurred in the last 100 years. I had a great time exploring it, there was a bit of everything, camping on the spot in heavy rain, and a day exploring the mine full of thick mud, well worth the time.