CHeck Pinterest for ideas. Depending on how old your children are would depend on the intensity of the clues you would need. We didn't scavenger hunt, but we gave one clue a week for two months. My daughter was crafty and would go to school and enlist the help of her friends to help decipher the clues, my son was a "wait and see" kind of kid. We did scrambled words DREAM, ORLANDO, and mentioned pirates and animation. My daughter guessed WDW, but not the cruise by week 5.