Abheinn Factory is the 6th area of the islands in Mario on an Saoire. To get to the factory, Mario must have obtained the key from the Rainbo'b-omb in the Icy Grey Caverns and use it to unlock the door on the main level of Castle Saoire. The factory is composed of two main industrial buildings in the middle of a vast grassland. There is also a small river which flows throughout the area. Mario can also access the next level by following the path to the other side of the factory. As stated by a sign, the main purpose of the factory is to "provide the electricity and food" for the island and that only "factory employees" should enter due to the dangers and "trash".