Well - it was the first time in 35 years , and the last time I did it, I had no clue really as to what I had to do and couldn't run .
I did it here goo.gl/maps/hFwCV They had 4 different courses - from a short and extremely easy one for children up to the longest 5.2K ( with 26 checkpoints) . HOWEVER - the points at which the checkpoints were placed were obviously selected in a fiendish way, whereby you could never run in a straight line from one to the other because of the physical barriers (such as swamp and thick bush, etc) . Hence I reckon my path would have been more around 10K . It took me 1hour 30 minutes to finish the course.
You are basically running a race against yourself only - as people start at different times ( according to when they arrive at the course) , than they do different courses -- so people are running all over the area , criss-crossing one another. I did purchase a cheap compass before I went to the event -- but did not have to use it at all. It was simply a matter of map reading "on the run" . The maps are highly dteailed - down to the point of showing individual trees.
I did enjoy it - and it was a very hard "workout" . It was good in one way in that you are not running all the time - you have to stop to register at each checkpoint and than have a look at the map to figure out how you are going to get to the next checkpoint. I will be definitely getting more into this - and I think it will become "my" sport.