The Sinnoh region is one of the main areas in the Pokémon series, introduced in the fourth generation of games. It is known for its diverse landscapes, including mountains, forests, and lakes, with notable locations like Lake Verity and Mount Coronet. The region is inspired by the real-life Hokkaido island in Japan. In the Sinnoh region, players can encounter various Pokémon species, including the legendary Dialga, Palkia, and Giratina. The region features the Sinnoh League, where trainers compete to become the Champion. The main storyline revolves around the villainous team, Team Galactic, and their plans involving the creation of a new universe.