Beat Blaine, and instead of pointing you straight at Viridian’s last gym, Bill shows up asking if you want to sail off to a chain of islands nobody’s mentioned before. Say yes and suddenly there’s a Tri-Pass, a guy named Celio running some kind of Network Machine, and a map with seven numbered islands on it. Say no and Bill just… waits at the Cinnabar Pokémon Center. None of that first offer is what causes the confusion, though. The real question shows up much later, after the Elite Four, when the game wants a Ruby, then a Sapphire, and expects you to already know which island has which. There are really two separate Sevii trips: the optional one you can take right after Blaine, and the postgame one Celio actually needs from you. If you’re still working through the main story and just want to see where the islands fit, the full FireRed walkthrough covers the gym order and everything around it — this guide is just the Sevii side.
What Are the Sevii Islands?
They’re a group of islands south of Kanto. Bill takes you there the first time, sailing out from Cinnabar right after you beat Blaine, but after that, regular access runs through the Seagallop ferry out of Vermilion City. You can’t Fly between Kanto and the islands, so whatever pass you’re holding matters. One Island is the hub. That’s where Celio lives, and pretty much everything about this questline runs through him.
How to Unlock the Sevii Islands
The offer comes from Bill, right after you beat Blaine at the Cinnabar Gym. Accept it and he takes you to One Island. Before you even reach Celio, Bill hands you a Meteorite and asks you to carry it over to the Game Corner owner on Two Island. Then you meet Celio at the Pokémon Network Center, and he’s the one who actually gives you the Tri-Pass, along with an updated Town Map that now shows the islands.
That pass covers One, Two, and Three Island, and that’s genuinely all you get on this first trip. There’s no ferry home yet, either. Two Island’s owner is missing his daughter Lostelle, which sends you to Three Island for a short scrap with a biker gang and a walk through Bond Bridge and Berry Forest to find her. Only once she’s found does Celio arrange the ride back to Cinnabar with Bill.
None of this is required to fight the Elite Four. You can tell Bill “later” and go straight for Viridian instead, and Sevii will still be sitting there waiting whenever you’re ready. One Island also happens to be where Moltres lives, up on Mt. Ember. That fight has its own full writeup elsewhere, so it’s not repeated here.
Two trips, not one. Right after Blaine, you can visit One through Three Island with the Tri-Pass — optional, no rush. Four through Seven don’t open until after the Elite Four, and they run through a completely separate Ruby-and-Sapphire quest for Celio, which is really what this guide is about.
How to Unlock Four, Five, Six, and Seven Island
This is where most players get stuck, mostly because “beat the Elite Four” isn’t actually the full requirement. What you need for the National Pokédex is three things landing at once: you’ve entered the Hall of Fame, you own at least 60 different species in your Kanto Pokédex, and you’ve already been to One Island. Get all three, talk to Professor Oak in Pallet Town, and he bumps your Pokédex up to National Mode.
Head back to Celio after that. He’ll tell you the Network Machine is missing a gemstone: a Ruby, supposedly somewhere on Mt. Ember, and asks you to go find it. Getting there takes Surf (to reach the mountain’s base from Kindle Road), then Rock Smash and Strength once you’re inside, for the rocks and boulders blocking the lower floors. Two Team Rocket Grunts are guarding the place; beating them is also how you overhear the first Rocket Warehouse password, “Goldeen need log” — hang onto that.
Bring the Ruby back to Celio and he takes your Tri-Pass away in exchange for the Rainbow Pass, which covers all seven islands. Not an upgrade sitting on top of the old pass. A replacement. If you want the item details, Bulbapedia’s Rainbow Pass reference confirms the same trigger: Celio gives it to you after the Ruby, not the Sapphire people sometimes assume comes first.
| Pass | When You Get It | Where It Lets You Travel |
|---|---|---|
| Tri-Pass | From Celio, your first One Island visit | One, Two, Three Island |
| Rainbow Pass | From Celio, right after you hand over the Ruby | All seven islands — replaces the Tri-Pass, doesn’t stack with it |
Sevii Islands Walkthrough — Island by Island
One Island
Everything routes back here. Celio’s office is where you pick up both passes and where you’ll keep returning to hand off the Ruby and Sapphire. Kindle Road leads north to Mt. Ember, home to both Moltres and, on a much later trip, the Ruby. Full Moltres encounter details live in the Legendary Pokémon Locations guide rather than here. If you want to poke around, Treasure Beach is a short surf south of the dock.
Two Island
The Game Corner doesn’t open until you’ve sorted out Lostelle on Three Island. That’s the whole reason you’re sent there in the first place. Once it does open, there’s a Move Tutor by the name of Move Maniac who’ll re-teach a Pokémon a move it already knew, for a stack of Mushrooms. Handy if something evolved past a move you wanted back. Cape Brink is out here too, but it’s more of a later stop than anything you need right now.
Three Island
Four bikers, one after another, capped off by a guy named Cue Ball Paxton. Beat them and the way opens to Bond Bridge and Berry Forest, where Lostelle’s actually hiding. Find her and this island’s done its job.
Four Island
The point of coming here is Icefall Cave, and it’s not optional. Waterfall (HM07) is inside, and using it to reach the cave’s back section puts you face to face with Lorelei — yes, that Lorelei, she’s a Four Island local — confronting a group of Team Rocket Grunts. She takes most of them; you only have to fight the one. Win, and the Grunts scatter to their base on Five Island. Everything else here — the Day Care, a Body Slam tutor, a wild Lapras in the back cave — is worth a look but none of it blocks the story.
Quest order, not island number: Four → Six → Five. Four unlocks the next step. Six is where the Sapphire actually turns up. Five is where you get it back. Following the numbers in order will have you standing in the Rocket Warehouse with nothing to do yet.
Six Island
This is the one people skip by accident, because nothing about “Six Island” screams Sapphire the way “Rocket Warehouse” does. But it comes first. Head to Ruin Valley, use Cut on the sealed door at Dotted Hole, and work through the Braille floor sequence — Up, Left, Right, Down — to reach the chamber at the bottom. The Sapphire’s sitting right there, except you don’t actually get to keep it: a scientist named Gideon drops in from above, grabs it, and tells you outright he’s planning to sell it to Team Rocket. On his way out he lets slip the Rocket Warehouse’s second password, “Yes, nah, Chansey.”
Found, not kept. The Sapphire’s discovered here on Six Island, then stolen on the spot. You don’t recover it until you track Gideon down on Five.
Everything else on Six Island — Water Path, Green Path, Pattern Bush, Outcast Island, Altering Cave — is worth exploring on your own time, not something Celio’s quest needs from you.
Five Island
Now the Rocket Warehouse actually matters, because you’ve got both passwords. Head to Five Isle Meadow, get past the door, and fight through the Grunts and Admins inside. Beating the second Admin is what ends Team Rocket’s Sevii operation entirely, once he clocks your Earth Badge and decides it’s not worth it anymore. Gideon’s waiting at the end. Beat him and he hands the Sapphire over, grumbling that it was worthless anyway.
Worth a detour if you’re not in a hurry: Memorial Pillar (surf east from Five Isle Meadow), Resort Gorgeous, and Lost Cave, where rescuing Lady Selphy is what fills Resort Gorgeous’s one empty house.
Take the Sapphire to Celio and the Network Machine finally comes online.
Seven Island
Nothing here blocks Celio’s quest. Go because you want to, not because the story’s making you. Trainer Tower is worth it if you want tougher back-to-back battles across four different modes, each with its own reward. Sevault Canyon has some of the strongest regular trainers in the game if you’re after a challenge. And the Tanoby Key, once solved, fills the surrounding ruins with catchable Unown, good if you’re chasing a complete Pokédex and skippable if you’re not.
Island Quick Guide
| Island | When It Opens | Why You Go There | Required for Celio’s Postgame Quest? |
|---|---|---|---|
| One | Right after Blaine | Celio, Ruby/Rainbow Pass, Sapphire return | Yes |
| Two | Right after Blaine | Lostelle setup | No |
| Three | Right after Blaine | Rescue Lostelle | No |
| Four | Rainbow Pass | Icefall Cave, Waterfall, Lorelei | Yes |
| Six | Rainbow Pass | Dotted Hole, discover Sapphire | Yes |
| Five | Rainbow Pass | Rocket Warehouse, recover Sapphire | Yes |
| Seven | Rainbow Pass | Trainer Tower, Tanoby Ruins, Unown | No |
What Changed on Nintendo Switch in 2026?
The Sevii quest itself — Tri-Pass, Rainbow Pass, Ruby, Sapphire, all of it — plays out exactly the way it always has. The part that’s different is how you get the tickets for Navel Rock and Birth Island.
The tickets. On the original GBA cartridges, catching Lugia and Ho-Oh meant owning a MysticTicket, and Deoxys needed an AuroraTicket. Both were real-world items handed out at Nintendo events that stopped happening years ago. The Switch release replaces that entirely: beat the Champion with a team that includes at least one Pokémon still chasing its first Champion Ribbon, and both tickets just appear in your Bag. No event required.
A ticket in your Bag isn’t a ferry ride. Having the MysticTicket or AuroraTicket doesn’t skip Celio’s quest — the Seagallop still won’t sail to Navel Rock or Birth Island without the Rainbow Pass too. It’s entirely possible to have both tickets sitting unused while you’re still tracking down the Ruby.
Pokémon HOME. Support arrives in October 2026, per Pokémon’s own August 2026 announcement, but it only runs one direction. Pokémon caught in FireRed or LeafGreen can move into HOME and onward into other compatible games. They just can’t come back once they’ve gone that far, and nothing from another game can be sent into FireRed or LeafGreen at all.
Navel Rock and Birth Island
Neither of these counts as one of the seven numbered islands. Navel Rock sits between Four and Five Island; Birth Island is further out, near Six and Seven. Navel Rock needs the MysticTicket and holds both Lugia and Ho-Oh; Birth Island needs the AuroraTicket for Deoxys. Both still require the Rainbow Pass on top of the ticket. Encounter details, catch mechanics, and the Birth Island puzzle all belong to the FireRed Legendary Pokémon Locations guide, not here.
FAQ
How do you get to the Sevii Islands in FireRed? Beat Blaine at Cinnabar Gym. Bill offers to take you right after — say yes, and Celio hands you the Tri-Pass on One Island.
Can you skip the Sevii Islands before the Elite Four? Yes, completely. Nothing there is required to fight the Elite Four.
How do you unlock Four Island in FireRed? Get the National Pokédex — Hall of Fame, 60+ species owned, and a visit to One Island — then bring the Ruby to Celio. He swaps your Tri-Pass for the Rainbow Pass, and Four Island opens up along with the rest.
How do you get the Rainbow Pass? Deliver the Ruby from Mt. Ember to Celio. He takes the Tri-Pass back and gives you the Rainbow Pass in its place.
Where is the Sapphire in FireRed? Discovered on Six Island, at the bottom of Dotted Hole, then immediately stolen by Gideon. You get it back from him on Five Island, inside the Rocket Warehouse.
Do you need Seven Island to finish Celio’s quest? No. Trainer Tower, Sevault Canyon, the Tanoby Ruins — none of it has anything to do with the Ruby or Sapphire.
How do you leave the Sevii Islands? Not on your first trip — the Seagallop won’t take you back until Lostelle’s been rescued on Three Island. After that, Celio and Bill send you home, and from then on any dock’s sailor will take you wherever your current pass allows.
What changed on the 2026 Switch version? The quest itself hasn’t moved. The MysticTicket and AuroraTicket now come from Hall of Fame progress instead of a discontinued event, but the Rainbow Pass is still earned the normal way.
Four → Six → Five is really the one thing worth remembering once the Rainbow Pass is in your bag. Once you’ve finished that route, the rest of the Sevii Islands are yours to explore at your own pace.
