The novel, stimulating and interesting Bechtesgaden salt mine is a huge salt mine formed by the changes in the crust of the Alps. It is known as a good place to experience the ancient mysterious underground world of Deao and change into the miner's clothes before entering, and experience the process of salt mining. Schoolchildren line up like a small miner to enter, enter a few hundred meters in the salt mine. In the underground river, take a boat, slide, and receive various knowledge points. Unfortunately, it is forbidden to take pictures in the mine. Today, I experienced what it feels like to have a mine at home.