Teams of 2-3 (and some soloists) navigate with map and compass while on foot, bicycle, and canoe. CIA is designed to push you for 12 hours or be family friendly for beginners!  Reach as many checkpoints before the cutoff time. The team reaching the most points wins!
12 Hour Full Details https://www.dinoseries.com/cia12hour
CIA Lite is a 4-hour beginner oriented adventure race. In addition to shorter duration, gear list is shorter, the navigation is a bit simpler, and there is no map plotting required.
4 Hour Full Details https://www.dinoseries.com/cia4hour