A walk around the local area where the route is defined by the flip of a coin. Using maps and landmarks navigate your way back to base at an agreed time. This works best if you have an estate based location with lots of interlinking roads and paths.
Local Map, 2p piece (or any coin), walking boots and coats/sunhats and cream.
Set off from base. At every junction a YP flips the coin to decide which way to go. Heads = Left, Tails = Right. After an agreed amount of time use the maps to navigate back to Scout Hut.