Seabreak Path
From Bulbapedia, the community-driven Pokémon encyclopedia.
The Seabreak Path (Japanese: うみわれのみち Seabreak Path) is an extension of Route 224. It can only be accessed if the player has Oak's Letter. It ultimately leads to Shaymin's domain, the Flower Paradise. Despite being the longest route in the game (256 "tiles" high by 32 wide), there is no tall grass, and therefore, no wild Pokémon.
