Climbing events usually involve large numbers of first-time climbers. The certified TCI instructors are well prepared for this kind of challenge because they have extensive experience staging and managing this activity. This kind of event is not a training climb. The lead instructor must first approve the climbing tree and climbing site area. Any hazards must be removed.
Safety is the most important concern.
The instructor must then deliver the tree climbing equipment to the site. Sometimes the instructor drives to the event, sometimes they fly with the gear, and sometimes they ship the gear packages to the event. The lead instructor can not run a climbing event alone. There are simply too many details to attend to. The crowds will be large and it is almost impossible to safely manage this kind of event by one person alone.