The inflatable water slide measures 15-feet by 16-feet, stands four-feet-tall, and makes the perfect backyard companion to this easy-to-set-up $59 above-ground pool. Kids can careen from the top of the slide down to the shallow end while others soak them with an attached water cannon. There’s also an accompanying obstacle course that sprays kids with water as they slide. While the Splash Zone is a good deal at $125 off, it’s not Walmart’s only water slide on sale. In fact, there’s an inflatable castle, a metal slide, and a classic slip ‘n slide all deeply discounted to offer parents a little more relief, this time financial, from the heat. There’s even an insane sports park with a built-in basketball hoop marked down from $799 to $499. Buy Now $275 Every product on Fatherly is independently selected by our editors, writers, and experts. If you click a link on our site and buy something, we may earn an affiliate commission.