Jenbach train station (between Innsbruck and Kufstein). From there take the bus*) or taxi to Maurach (4km).
From Tegernsee train station by taxi or bus no. 9550 past Kreuth to Achenkirch.
*) arrival and departure by bus from Jenbuch to Achenkirch, Maurach, Pertisau and Steinberg is free for all guests that are able to present a booking reservation of their accommodation provider. During your stay you can use the bus between Achenkirch, Maurach, Pertisau and Steinberg for free. Your host will give you a free bus ticket.