What must staff instruct guests to do after they are harnessed?

After guests are harnessed, it is essential that they wait for staff approval before proceeding. This ensures that the staff can verify that the harness is properly secured and that all safety checks are completed before any climbing begins. It emphasizes the importance of safety protocols and accountability in preventing accidents and ensuring that all individuals are ready for the activity. This step not only protects the guests but also enables staff to manage the flow of the activity effectively and ensure that everyone is equipped to participate safely.

In contrast, checking their own harness, climbing immediately, or validating their height may lead to oversights or safety risks that could have been avoided with proper staff oversight and instruction. Hence, waiting for staff approval is a crucial step in maintaining safety standards in the activity.