Write clues on pieces of paper (Mom or Dad can read the clues to kids).
Set up pop up tent in yard for base camp. Give them 1st clue – to lead to 1st box.
Box #1 – Small flashlights (maybe the kind they wear on their heads). These will help them find other treasures. In the box with flashlights is clue for box #2.
Box #2 –
Box #3 –
Box #4 -