Contact Form

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.

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Your request: I would like to inquire about a group tour.

Please choose a tour
Tour language
Number of participants
Discount
Durchschnittsalter
Preferred date/start time
note
Please note: Requested dates/times are not binding. You will receive an offer from us regarding your desired date, if necessary, with an alternative start time. Group tours are only possible outside of official tour times. Depending on your desired tour, please also consider other possible time restrictions or the maximum number of participants for group tours. Information on particular tours can be found under Guided Tours > Tours for Groups > Conditions for Groups.
Your Message
contact information
Your contact information (for invoice customers, please specify the invoice address)
Form of address
First name
Last name
Company, Department
Street
No.
Postal code
City
Country
Telephone
Telefax
E-Mail
required information
required information
Privacy policy
Datenschutzhinweis
You can find our privacy policy here.
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