Attending a show as a non-rider can be more fun than being the rider. There's no stress ... no worrying. You're not going to get bucked off (Zuko's mom's worry). You don't have to memorize a test or a course. You don't have to keep your clothes clean. You don't have to load and unload the trailer. And being a gopher is a lot cheaper than being the rider!
PDM Stables is located in the south-east part of town. You can read more about them here.