Keeping your kids busy or entertained doesn’t always mean going out and buying up supplies from the stores. Oftentimes, the simplest ideas are the most entertaining.

One of those ideas is found in nature itself. Rock balancing is an art that you’ve likely seen before. You take smooth rocks and balance them atop each other, constructing a tower that seems to defy gravity.

The best part? It’s free. Rocks can be found all over nature. Maybe even in your backyard. And this is great for keeping the children’s attention, and even offering a bit of intrigue.

Share your art with creative and perspective tricks to make your children appear at the top of the mountain, so to speak.