Getting Around Berlin
Berlin has one of the most efficient and comprehensive transit systems in Europe. There are eight subway lines (U-Bahn), along with many suburban train lines (S-Bahn), trams and buses operated by the BVG. The city also has a terrific network of safe and rapid bike paths.
Fares for the transit system are based on 3 tariff zones: AB, BC or ABC. Most likely, unless you are traveling further away to Potsdam, you’ll only need zones AB. Tickets for the transit system can be easily purchased from the various machines in the U-Bahn stations. A single ticket costs 2.10 for travel in AB tariff zones, but you can purchase an All-day Pass for 6.10 or a 7-Day Pass for 26.20 (AB zones)/32.30 (all 3 zones). Check with each station for free maps. Note that you must validate your ticket at the machines on the platform before boarding.