If you use our contact form*, your request will be sent directly to the appropriate contact person within our association. By doing so, you will help us to answer your request as fast as possible.
In our Underground FAQ and in the important tips sections, you will find the answers to the most frequently asked questions.
* PLEASE NOTE: AT THE MOMENT (AND PROBABLY BY THE END OF THE YEAR) THERE ARE NO BOOKABLE GROUP TOURS POSSIBLE. REQUESTS FOR 2021 WE WILL TAKE FROM 1. OCTOBER 2020 ON THE CONTACT FORM.