Rope Maze- hook a d-ring to a colored rope and move it to the start of the rope. Have kids hold onto the ring and try to find their way through the maze. crawl up down, over and under to find your way to the end of the maze.
Backyard Kerplunk Game: The goal is to get out the sticks without any balls falling out. Children and adults will have a blast challenging each other with this. (via All Outdoor Games to DIY This Summer via Brit + Co.
This is a game that includes both fine and gross motor skills. Picking up small cotton balls has to do with fine motor skills and throwing the cotton balls is a gross motor skill. All you need for this activity is cotton balls, tape, and a hula hoop