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
Tilgate Park in Crawley holds many special memories for me, as we used to visit a lot when I was little. There are animals to see, a lake with ducks to feed, and a wonderful adventure playground.
Adding stumps and other balancing elements creates a sand play area that is so much more than just a sand box. This appeals to a much wider age range than a box of sand. Can become a fire pit when the kids get older.