The Sinnoh Region is one of the main areas in the Pokémon world, introduced in the fourth generation of Pokémon games. It is known for its diverse landscapes, including mountains, forests, and lakes. The region is home to many unique Pokémon species, including the legendary Pokémon Dialga, Palkia, and Giratina. In the Sinnoh Region, players can explore various towns and cities, such as Twinleaf Town and Snowpoint City. The region features the Sinnoh League, where trainers compete to become Pokémon Champions. Sinnoh is also notable for its rich mythology and the presence of the Distortion World.