out of 4 checkpoints, go to at least 3, including the farthest, compulsory ones, and be back at checkpoint 1 by 1pm, to trade maps with another group, and follow their route to each check point.
we went to 3 checkpoints, except the compulsory one, lost our main map and sketches of the checkpoints, did not trade maps with anyone or start on the alternate routes, made it back to base by 3.30pm.
and we all turned into 'lobsters'
even my eyes are sunburnt.
it was fun.