The Wailmer and Wailord Seaside Contest Hall and Battle Arena of Friendship, also known as the Seaside Contest Hall, is the largest building within the Wailord Sanctuary of Friendship. Petitioned by the owner of the Sanctuary, William Rosenbach, the Contest Hall is an elegant building, the outside themed around the very sea that surrounds the area, the inside a grandiose hall with elegance and grace being perhaps the most major factors, if not the overly-obvious expensiveness of the decor. The surrounding area, the Sanctuary, has no building that matches either in size or elegance. Not only used as a Contest Hall, within the Sanctuary the Hall is also center of events, with a large bulletin board near the door, with notices and posters denoting events, situations, and so on within the Sanctuary.