A Traveler's Guide to the World of Pokémon/Sevii Islands

The Sevii Islands (ナナシマ) is a region in the fictional Pokémon universe, introduced in the Pokémon FireRed and LeafGreen video games. The name would imply that there are seven islands in the Sevii Islands, but there are in fact nine islands in total, two of which (Navel Rock and Birth Island) are only accessible through special promotions, or by using a cheating device like Gameshark or Action Replay. Like the Kanto, Johto, Hoenn, and Sinnoh regions, the Sevii Islands are based on real-life locations, this time on the Izu and Bonin Islands, off the south coast of Tokyo.

According to an old lady on Quest Island, the islands were named such because they were formed in seven days. The name is probably a portmanteau of "seven" and VII (Roman numerals for seven).

On these islands, one can catch wild Johto Pokémon and four legendary Pokémon, none of which are available in Pokémon Ruby and Sapphire.

Islands 1-3
These islands are accessible after the player defeats the seventh gym leader, Blaine. At that time, Bill will give the player a Tri-Pass at Cinnabar Island. The islands can be revisited by using the Tri-Pass in Vermillion City where the S.S. Anne was docked. No Johto Pokémon can be obtained from Islands 1-3 until the player has defeated the Elite Four.

One Island
One Island or Knot Island is the biggest island. This island's Pokémon Center has a large machine that enables the player to trade with Pokémon Ruby, Sapphire, Emerald, Colosseum, and XD. To unlock trading, the player must retrieve two key items: the Ruby item and the Sapphire item. The player gives the items to Celio, a Pokémaniac and friend of Bill, inventor of the PC storage system. After the player has beaten the game once, he or she can obtain the two items, give them to Celio, and unlock trading between the games.

To the north is a place called Mount Ember. In FireRed and LeafGreen, the Legendary Pokémon Moltres has moved to this location. The Ruby item is also in Mount Ember. After beating the Elite Four, Slugma can be caught on Mount Ember.

Two Island
Two Island or Boon Island is a small island. One house houses the Move Maniac, a person who can teach moves to the player’s Pokémon. Island Two is also home to a Game Corner, where players use the Game Boy Advance Wireless Adapter to play against their friends in two mini-games, Dodrio Berry Picking and Pokémon Jump. At the north end of Cape Brink, an old lady in a house will teach the player's starter Pokémon a special move if it is friendly towards the player; Frenzy Plant for Venusaur, Blast Burn for Charizard and Hydro Cannon for Blastoise.

Three Island
Three Island or Kin Island has a biker gang called the Kanto Rider Federation that the player needs to defeat. The player is searching for a lost girl named Lostelle on this island. After venturing into the forest, the player finds Lostelle under attack by Hypno. After saving the girl, the player can access the mini-games on Two Island. After Beating the Elite 4, Dunsparce can be found in a previously inaccessible patch of grass.

Islands 4-7
These islands are accessible after defeating the Elite Four, getting the National Pokédex, and getting the Ruby from One Island. Celio will give the player a Rainbow Pass.

Four Island
Four Island or Floe Island is the birthplace and home of Lorelei of the Elite Four in Kanto. Despite being within a supposedly tropical area, it contains the Icefall Cave, which, as the name suggests, is a frozen cave to the east. There is also a day-care center, which can hold two Pokémon at once, allowing the player to breed for Pokémon eggs. Within Icefall Cave, the player teams up with Lorelei in fighting off Team Rocket, who are threatening the peace on the island.

Five Island
Five Island or Chrono Island is very small. This island is home to the Team Rocket Warehouse. After obtaining the Sapphire item in the Dotted Hole, the player must chase it back to the Warehouse where a Team Rocket professor who stole it from the player is keeping it. It is vital for compatibility with Ruby, Sapphire and Emerald. South of the Warehouse is a memorial pillar for a boy's dead Onix. Five Island has a sea route known as Water Labyrinth in which Hoppip can be found. In this area, the player can receive an egg which hatches into Togepi. East of the Water Labyrinth there is an expensive resort called "Resort Gorgeous".

East of Resort Gorgeous, there is a cave known as the Lost Cave (reminiscent of The Legend of Zelda’s Lost Woods), a maze where Murkrow appear in Pokémon FireRed and Misdreavus appear in Pokémon LeafGreen. At the bottom of this cave is a lost girl named Selphy from Resort Gorgeous. She reacts with hostility and engages the player. Once defeated, the player is transported back to Resort Gorgeous, where she will ask to see a random Pokémon. If presented, she will give the player a random item which can be sold, or a Luxury Ball. If the player returns to the room in the cave where Selphy was afterwards, a Silk Scarf can be obtained there.

This island also is host to the Rocket Headquarters, where the handful of remaining Team Rocket members reside. They are surprised to learn that the player has defeated Giovanni and that the Team Rocket syndicate has been disbanded.

Six Island
Six Island or Fortune Island is another large island. It has a forest called Pattern Bush, which has lots of Pokémon trainers and the location of Heracross, Ledyba and Spinarak. There are ruins to the south, which contain Yanma, Natu, Wobbuffet and Sentret. There is a mysterious building which has Braille encrypted that says cut to get in where the Sapphire is found but the Sapphire is stolen by a Team Rocket scientist. There is also Altering Cave, which shifts catchable Pokémon depending on the Mystery Events. Initially, only Zubat can be found in this cave. Mystery Gift can cause Shuckle, Aipom, Mareep, Stantler, Teddiursa, Houndour, Pineco, and Smeargle to appear, which are all exclusive to this area (except in Emerald, in which these Pokémon are encountered in the new area of Safari Zone).

The Sapphire item is originally located in the Dotted Hole on this Island.

Seven Island
Seven Island or Quest Island is one of the major islands. To the north is the Trainer Tower, which is similar to the Battle Tower in Pokémon Ruby and Sapphire and Trainer Hill in Pokémon Emerald.

In the Trainer Tower the player battles through a number of opponents to get a prize at the end. There are four different types of battles: Single, Double, Knockout, and Mixed. Every time one clears all the trainers on one floor, Pokémon can be healed on the first floor before proceeding.

To the south, the Island contains Sevault Canyon, a location with high-level Pokémon and trainers. Further on south is Tanoby Ruins, where wild Unown reside. The player must first complete a puzzle in the Tanoby Key for the Unown to appear.

There is also a house in the main town that looks plain enough, but inside there is a stack of boxes blocking a doorway. In the Japanese versions, the door is not obstructed, and is used for e-Reader compatibility.

Secret Islands
These two islands are only accessible through special events. The player must have gone to a Nintendo event, or they can alternatively use a cheating device such as a Gameshark or Action Replay - although the latter may cause corrupted game files if used with the North American version of the game. These islands are also accessible in Emerald.

Navel Rock
Players need the Mystic Ticket to enter this island. Navel Rock has only one cave, inside of which there are two Legendary Pokémon: a level 70 Ho-Oh and a level 70 Lugia. Ho-Oh is found on the summit of the tall island, while Lugia is on the bottom, in a pool deep underground.

Birth Island
Players need the Aurora Ticket to access this island. Birth Island is shaped like a triangle, and on it there is a smaller triangle which the player can move around. After solving this puzzle, a Deoxys (Level 30) appears. It will have an attack stat increased for FireRed, defensive stat increased for LeafGreen, and a speed stat increased for Emerald. Deoxys will change form depending which game it is in. This is also one of the few places in Pokémon where background music does not play, alongside to the Cave of Origin in Ruby and Sapphire.