If you feel you have undertaken a challenge particularly well you can play your 'Joker'.

This means that the points you score on the chosen challenge are doubled (only applicable for challenges 2-5).

You can only play your Joker once during the competition and the submitted report must have the 'Joker Card' attached.

You will not be allowed to play your Joker after the points have been awarded so use your judgement wisely to decide which challenge to apply it to.