The ages range from under 12 years for entry level, 12 to 18 years for the core events and 18 plus years. There are four classes of event:
- Below 12 years for the Teeni Trek
- 12 to 14 years for the Mini Trek
- 14 to 18 years for the Main Event
- 18 years plus for the Veterans and Supervets Events
So far the highest combined age for a team was 149 years!