Simple, straightforward, and no-nonsense, in a word: Normal. Like the rest of Nowtoch City, Maria's gym has no frills, bells, or whistles; it's just a gym, there are some trainers, people come to battle, and then Maria goes back to doing anything else she can do besides being a gym leader. The Nowtoch City Gym has a single gray-tiled corridor with two small enclaves on either side where Maria's Junior trainers will challenge you, but if you wanted to, you could, you know, just go around them.