You already have a login for online bookings: log in using your membership no. (without P or M and the preceding zeroes) and personal Hapimag password.
We walk for hours in the forest and admire the huge moss-covered boulders that fell into the valley some 10,000 years ago. The landslide of Flims shaped the countryside and carved out features such as the unique Rhine Canyon. We have a picnic on an Alpine meadow and watch how the marmots inquisitively stretch their necks into the air.