Take nature as a source of inspiration for those arty kids! A small hike can help them be more creative. There are tons of patterns in nature. Finding them is an activity most kids enjoy. They'll even forget they didn't want to walk in the first place!
Once they have soaked in nature it's time for creating art. Some options include: drawing something they liked. Using parts of nature to paint (such as feathers, leafs and stones) or to sculpt. They can also find nice color palettes created by nature to use on their coloring books. If the walk allows it, you can even stop for quick sketches along the way!
During summer camp we encourage kids to bring a notebook and pencils. We sketch after hikes, during bus rides and at the library sometimes. Even when it's not Art week, we mix it in the fun!