Nihan

Nihan is an island found in Weyard's Eastern Sea. It is themed to correspond with the real-world Japan; the name Nihan is a take on the name "Nihon", which is the casual name native Japanese speakers use to refer to Japan itself.

Location and Geography
Nihan is located to the east of Angara, particularly the Morgal and Ei-Jei regions. Nihan's only coastline is on the western side of the island. A mountain range runs down the middle of the island, separating Izumo and Gaia Rock in Golden Sun: The Lost Age.

In The Lost Age
Nihan first appears in Golden Sun: The Lost Age, although it is not named as such. It is the site of the village of Izumo and the dungeon Gaia Rock.

In Dark Dawn
After the Golden Sun event, Nihan was buffeted by an enormous tsunami, destroying Izumo. The citizens relocated to Yamata City, making it the isle's new largest settlement. Nearby islands have also risen up from the seafloor, making the island part of a somewhat large chain. Gaia Rock is no longer a visitable location, but it is mentioned by some of Yamata's citizens, and the area immediately south of it is home to a randomly encountered Mars Djinni, Sizzle.

Encyclopedia
Nihan's Encyclopedia entry reads as follows:
 * "This eastern island was once home to the village of Izumo before it was flooded. The surviving villagers founded Yamata City. The dominant feature of the island was Mount Mikage (also called Gaia Rock), which was home to the Great Serpent."