Details.
An approximately two-hour guided sightseeing tour through Berlin's underground tunnels in an open carriage travelling at around 35 km/h. A moderator explains interesting and unusual facts about the architecture and history of Berlin's U-Bahn. Tours start and end at U-Bahnhof Deutsche Oper. Participation requires a ticket. The minimum age for independent participation is 18. Children aged 6 and older may participate when accompanied and supervised by an adult. Helmets are provided and must be worn. Tours are generally moderated in German, with English-language tours offered on separate dates. Tours take place on a limited number of Friday evenings from April to October, subject to vehicle availability and construction restrictions. Participants should arrive 30 minutes before the start.