Munich has a fantastic public transportation system which includes subways, trams, and buses (MVV maps). In fact, the subway stop at JYM (Königsplatz) resembles a museum! All university students (including JYM students) are required to purchase a highly subsidized "Semester Ticket." Details are provided in our Pre-Departure Bulletins.
Munich is a very biker-friendly city, and most JYM students buy a second-hand bike while they are in Germany (as they've done for decades!).
On the other hand, you can do it the old fashioned way and walk! Munich is one of those cities where you can walk forever and always find yourself surrounded by something beautiful. Give it a try!