Pokémon FireRed and LeafGreen take place mostly in the fictional region of Kanto. This is one distinct region of many in the Pokémon world, which includes varied geographical habitats for the Pokémon species, human-populated towns and cities, and routes between locations. Some areas are only accessible once the player acquires a special item or one of the player's Pokémon learns a special ability. Near the end of the plot, the protagonist is able to venture to the Sevii Islands, a new area not available in the original Red or Blue games. It consists of an archipelago of seven islands that contain Pokémon normally exclusive to the Johto region.