I like this idea, maybe could use more shallow water tubs thought. A big rive-like pool for water play. Kids can crowd around both sides of the pool. Also can learn how things travel from one end to the other
free tires from garages more then willing to give them away. A few cans of spray paint from Walmart (paint after assembled to save on paint) and Cypress mulch (packs really nicely) from Home Depot. Adding in a Little Tikes sliding board.