Instead of just throwing things into the cooler, get some snap top lids and portion all of the perishables into boxes. Then cool the food with ice packs so the cooler doesn't fill with water.
Simple Color Scavenger Hunt for Kids
This simple color scavenger hunt for kids is unbelievably easy to throw together last minute and the kids have fun with it every single year. Great outdoor activity for kids, summer activity for kids, kids camping activity, color learning activity, and preschool color activity.