There is a small open air market on Boon Island where a few rare and foreign goods can be purchased. There is however no Pokémart, so people living on the island must venture elsewhere for more ordinary items.
A small climb up a hill brings to to Cape Brink where there are several retired trainers. The retired trainers are always happy to advise younger trainers who come to see them, and may on occasion help them teach their Pokémon powerful moves.