Pokémon Diamond and Pearl/Resort Area

There is not much you can do here, as there is no Mart (lamented by one lady you can talk to), so the only valuable thing about the place is the fact that you can heal yourself from ventures into Route 228. There are also a few berries you can pick, and also some valuable items the locals give you. But head out to Route 228 as soon as you are ready to do so.