Thank you for your comment, Dear visitor, We are very glad to read reviews about the Berchtesgaden Saltmine since we want to improve the underground experience every day. Unfortunately public transportation from Salzburg to the Saltmine is not as comfortable as we wish it would be. We can try to make an impact on the public transportation in a long term. We are sorry that you had the feeling that the train was overloaded. With a higher amount of participants on the tour, we try to minimize our waiting periods. So there is nothing unusual if the trains are more or less fully occupied. The audioguides normally work very good, but we will check them immediately. Most of our guests have a great time in the Berchtesgaden Saltmine, especially families! Thanks again for your comment and your visit in our Salt Mine. Kind regards