From Bulbapedia, the community-driven Pokémon encyclopedia.
The Sanyou Gym (Japanese: サンヨウジム Sanyou Gym) is the official gym of Sanyou City. The Gym Leaders are Dent, Pod, and Corn, who specialize in Grass, Fire, and Template:Type2 Pokémon respectively. Trainers who defeat them receive the Tri Badge.
In the games
The Sanyou Gym is a freaking butler cafe.
Trainers
If the player chose Tsutarja:
If the player chose Pokabu:
If the player chose Mijumaru:
Rewards
After Dent, Pod, or Corn is defeated, the player will be given the Tri Badge, TM83 (Cheer Up), and the ability to use Cut outside of battle.
Items
In the anime
The Sanyou Gym will appear in BW005.
Template:Gyms of Isshu