Looks like someone else has also had the idea to create "Lincoln planks" for the kids to build with. A permanent installation like this could also work well in the right setting, doubling as outdoor seating as well as a balance course
Leave plastic animals in a bin outside (near the garden, next to the sandbox, next to a patch of trees, etc) -- when children go outside to play, they them and let their imagination.forward to playing outside
This "v" trellis would be great for cucumbers-squash-green beans.Outdoor Play Spaces - secret spaces--- take the swings down and put lattice up on both sides of the swingset. The side of the A frame could be the entrance.