It’s an undisputed fact that kids love water — and it loves them back. Want to calm a cranky toddler? Put them in the bath. Want to delight a sweaty 5-year-old on a hot day? Let them get drenched. An easy, low-mess, and surefire way to keep kids entertained on summer days is to set up a water slide, sprinkler, water table, baby pool, or other water-based toy on the patio. It’s a win-win: Kids can splash around as much as they want, in a controlled setting, and you only need to hose them off when they’re done. Here are some of our favorite — and our readers’ favorite — backyard water toys.