Startup Idea : Treasure hunt

This could be used as either a dating or a social group application, The app constructs a treasure style hunt based on the entering of a set start and finish location, so when the app is started it generates a clue based on gps locating as to where the next destination is (e.g. grab a drink for bar X) upon completion of the clue the group or couple get set a new clue, only once gps location has confirmed they have reached the destination. This is ongoing until they reach their destination at which point they could receive an award (e.g. 25% off meal in target restaurant)