Backyard Projects For Kids: DIY Race Car Track- this but in a large size filled with pea gravel for rock box/ truck play area
DIY Leaf print for cards: Place a fresh leaf in between a sheet of paper and a paper towel. Tap it with a hammer and it leaves the outline of the leaf.
This imaginative play set up is easy to put together and loads of fun! Make a river in your sandpit that really holds water!
47 Incredibly Fun Outdoor Activities for Kids - Weaving with Weeds