The Bechtesgaden salt mine is called salzbergwerk, but Salzburg means salt. You can reach it by taking 840/836/848 at the bus stop in front of Beizhen Railway Station. The salt mine located in the ground is a constant temperature of 12 degrees, so even if it is a big summer, you will wear a special clothes to enter, otherwise you will be frozen. First take the open train in, then slide down like a kindergarten child, and then take a boat to row in the dark lake. The lake is bitter cold. Pay attention to keep up with the big troops, don't fall behind, because everyone is a individual passenger, the leader will not count the number of people.