Quest Island is the seventh island in the Sevii Islands archipelago. It is south of Floe Island and west of Fortune Island.
Quest Island, like the other Sevii Islands, has a town on it, named Seven Island; however, also like the other islands, this town is small compared to the island's explorable area.
Seven Island is located on Quest Island, and as such is surrounded by the rocky terrain of the island. However, the population has adapted to this, and do not have a problem with Sevault Canyon's landscape in the slightest. The island has been left virtually untouched in its natural state and can be difficult to hike around because of this.
Pokemon Available
Slowpoke – Psyduck – Kingler – Seadra – Gyarados – Krabby – Horsea – Magikarp – Tentacool – Tentacruel - Remoraid - Qwilfish
Trainer Tower
Although north of the town, the Trainer Tower is a more prominent feature of the island, and many citizens think of it as a feature of their town. The Trainer Tower is similar to the Battle Tower, that has various modes of battling, offering different rewards if they are beaten. Rewards are time-based: the lower the time taken, the better the prizes. It has sliding mazes and utilizes the multi-trainer double battle feature as well. Unlike normal Battle Towers, items, such as Revives and Potions, are permitted to be used both during and between battles.
The Canyon Entrance
The Canyon Entrance is a small area between the town of Seven Island and Sevault Canyon, serving to ease the transition between the city and the canyon's rugged landscape.
This area is quite small, in comparison to the long canyon ahead. The Pokémon found here native to the Kanto region, however, are very stronge. There are also many high-level Trainers here, and a lot of tall grass, which is impossible to go around, and must be walked or cut through.
The area starts from the north, just south of Seven Island, past the short bridge. The path makes its way south through a section of tall grass, and up a flight of stairs elevating after sea level. The path then travels south again, making its way past another flight of stairs, to a sections where the road is split, and can go one of two ways. If traveling east the path will twist around to enter Sevault Canyon from the west.
Pokemon Available
Fearow – Spearow – Phanpy – Meowth – Persian – Slowpoke - Sentret
Sevault Canyon
Sevault Canyon is an area on Quest Island in the Sevii Islands which includes the Tanoby Key and leads south to the Tanoby Ruins. It is a particularly long route and there are many strong Trainers to face. It is also notably a habitat of wild Larvitar.
As a narrow valley, wedged between the sea, Sevault Canyon has a mix of grassy patches and rugged, arid land. The canyon seems to serve as a training ground for elite Trainers, while being guarded by equally skilled Pokémon Rangers.
South of the canyon is a small house in which a man and his Chansey will heal Pokémon by making trainers do a dance.
Pokemon Available
Fearow – Spearow – Geodude – Graveler – Phanpy – Meowth – Cubone – Marowak – Persian – Onix – Skarmory – Larvitar
Tanoby Key
The Tanoby Key is a puzzle in Sevault Canyon on Quest Island in the Sevii Islands. The puzzle consists of several boulders that must be maneuvered into a correct pattern.

Tanoby Ruins
The entirety of this route is only seven small islets on a calm, blue sea. Within the sea, the standard Water-types are catchable.
At the southern end of Quest Island are the Tanoby Ruins, a series of seven small islands containing strange chambers. According to a Ruin Maniac, the Ruins have been around for over 1500 years for reasons unknown.
Tanoby Chambers
An ancient ruin that is rumored to be home to a peculiar POKéMON. However, so far, the POKéMON remains an unconfirmed rumor.