The Grindelwald Guest Card gives you free travel on the local/ski bus in Grindelwald. It also gives you discounts on the First cable car, at the local heritage museum and the sports centre and on various other local services. You will be given the card when you arrive at the hotel. You are free to use the card as soon as you have checked in, and it remains valid until midnight on your day of departure.
More information: Visitor`s Card Grindelwald