Katie Woo and JoJo decide to spend a rainy day at an indoor water park! From the wave pool to tasty treats, there's lots to love about the Happy Times Water Park. But there's one thing that Katie isn't so sure about: the Super-Duper Slide. Will JoJo help Katie face her fear of the big water slide? Part of the Katie Woo and JoJo on the Go! series.