The Cerios Archipelogo is a cluster of islands situated south-east of Sinnoh. It is comprised of eight different islands, each with intense geographical and biological differences between each other. The islands of the archipelogo are arranged in a line with Icen Island being the most northerly, near Sinnoh, and Terros Island being the most southern.
These islands are where the Pokemon Fakes Wiki's own fanfiction takes place with each season spanning one island.
Geographically, the space taken up by the archipelogo as a whole makes it slightly smaller than Sinnoh in width.
Due to the large volumes of water between the islands, the main method of traveling between them is by ferry or airlift, though the ferry method is by far more common and cheaper. The largest island in the archipelogo is Mouldron Island, where most ground type pokemon in the region are situated.