Sevii Islands

The Sevii Islands, or Nanashima in Japan, only appear in Pokémon FireRed and LeafGreen and an episode of Pokémon Chronicles. They are called the Sevii Islands/Nanashima because it is believed by elders of Seven Island that the seven islands were made in seven days. While seven islands (or in some cases island groups) are accessible to the player through normal gameplay, there are two additional islands that are each accessible only after acquiring a special item from a Nintendo event. These two islands can also be accessed in Pokémon Emerald. Access to one island allows the player to encounter Lugia and Ho-Oh. Access to the other island allows the player to encounter Deoxys; depending on the game version (FireRed, LeafGreen, Emerald), the DNA Pokémon Deoxys will be in one of its 3 variations. The Sevii Islands are located off the south part of the Kanto/Johto landmass. They are based on the Izu and Bonin Islands.