|West Exit: Relic Passage
Access To: Castelia City
Previously inaccessible in Black & White, Castelia's sewer system can now be accessed via a door in Sightseeing Pier. Originally, Team Plasma appear in this area, but more areas of it open up when Surf is obtained. It provides access to new areas of Castelia City, the Park area and a back alley. In Autumn and Winter, the water within the sewers is drained, giving access to new areas.
Special Moves used in Castelia Sewers: