Floe Island
Floe Island, commonly referred to by the name of its main town, Four Island, is the fourth and smallest island in the Sevii Islands archipelago. It is south of Knot Island, and west of Chrono Island.
The town of Four Island is the hometown of Lorelei of the Elite Four. It is here that she was first taught about Pokémon when she was just a young girl. Lorelei still resides in the town. Her house has a large collection of Pokémon dolls she has collected.
Floe Island is also host to a very large Pokémon Day Care run by an elderly couple. For a small fee, they will watch after a Trainer's Pokémon and raise their levels. Unlike the Day Care on Route 5, two Pokémon can be dropped off. Leaving compatible Pokémon at this Day Care will result in a Pokémon Egg being laid.
Next to the Poké Mart, there is a house owned by a man who will put stickers on the Trainer's Cards of Trainers who have accomplished a difficult task, such as entering the Hall of Fame, hatching Pokémon Eggs, or completing the Pokédex.
While the Sevii Islands are mostly tropical, there is one exception - a cave on Floe Island. The cave is on the northeast section of the island past a small lake. It is freezing inside the cave, due to the high population of Ice-type Pokémon that live there. For this reason, it is known as Icefall Cave.
To reach this island, a person has to have a Rainbow Pass, instead of the ordinary Tri-Pass.