The HPI is located in direct vicinity of Griebnitzsee in Potsdam on the border to Berlin. You can reach HPI in about 30 min by public transportation from Berlin. The closest train station is S-Bahnhof Griebnitzsee of line S7. Our group is in part A of the so-called A-B-C building marked with "B" on the map below. The building is open Mon-Fri 7:30-23:00, Sat 09:00-19:00, and Sun 09:00-17:00. For more information, see the general directions.