Dr. Lava on Twitter: "Off Kanto's Coast: FireRed & LeafGreen featured the Sevii Islands -- plus 2 special event islands -- that added tons of post-game content. But sadly, all 9 islands
Pokemon FireRed and LeafGreen :: Full Walkthrough
Pokémon FireRed and LeafGreen/Five Island — StrategyWiki, the video game walkthrough and strategy guide wiki
Rocket Warehouse - Bulbapedia, the community-driven Pokémon encyclopedia
Pokémon FireRed and LeafGreen/Seven Island — StrategyWiki, the video game walkthrough and strategy guide wiki
Tiny Design — The Sevii Islands in Pokemon FireRed and...
Let's Play Pokemon Fire Red, Part 57 : Sevii Islands Adventure - YouTube