With your ZugspitzCard, you don't have to make a separate reservation for the day you visit the Zugspitze.You are free to choose the day, you visit the Zugspitze in the period you have booked.You can find the opened All-Inclusive Partners here.
Garmisch-Partenkirchen Garmisch – Eibsee and return
Garmisch-Partenkirchen Free entry
Garmisch-Partenkirchen Freier Eintritt zum Publikumslauf