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.
At the southern end of the canyon, there is a small house, in which an NPC will ask the player if he/she wants to do the Chansey Dance (Japanese: ラッキーダンスLucky Dance), which uses the same background music as the HoennPokémon Trainers' School. If the player replies affirmatively, their character will perform a short dance and, as a result, all Pokémon in the party will be healed. This facilitates exploration of the Tanoby Ruins, so that players can catch all of the Unown, before returning to the main town of Seven Island.
Trainers with a Vs. Seeker by their names, when alerted for a rematch using the item, may use higher-level Pokémon.
The name "Sevault" comes from "seven vaults", a nod to the Japanese name. Shippō (七宝) translates to "Seven Treasures" and refers to the precious and semi-precious materials of gold, silver, pearls, agate, quartz, coral, and lapis lazuli.