The Apex Challenge held its first Overnight Challenge in May 2003. It was held in Wharncliffe Woods and built on the success of the first event but with the added twist of being in complete darkness.

Teams were again welcomed from all across South, West and Central Yorkshire but this time it was open to both Explorer and Network Scouts. South Yorkshire's teams dominated the league table of winners. The event included many activities that were similar to ones included in the first event, but made all the more difficult to complete with total darkness. Map reading by glowstick was definitely an acquired skill!