From September 3 to 13 and from September 21 to 30, the Bündner Hochjagd takes place. During this time, bike operations on certain sections of the Runca and Nagens trails are closed from 4:45 p.m. Detours will be signposted accordingly.

• The Val gl' Uors section on the Runca Trail
• The section B7 to C3 on the Nagens Trail