Osenia

Osenia is a large continent in Weyard, similar in size to Angara and Gondowan, though it has fewer settlements than those two, so it is likely that Osenia's population is not as large. Aside from Tundaria, Osenia is the eastern-most continent proper on Weyard. There are other land masses further east, but they do not count as continents in their own right. Most of Osenia's coast is on the Eastern Sea, though a small section in the south-west is greeted by the Western Sea.

Geography and Cultural References
Osenia is somewhat modelled on the South Pacific region and Oceania in the real world. In particular it bears a resemblance with Australia due to Air's Rock, which shares it's name with a location in Australia. However, the architecture of the settlements in Osenia bears little resemblance to native Australian architecture and seems to be mostly original.

Geographically, Osenia is dominated by a huge mountain range called the Bollo Range which is impassable by land and forms a barrier between the continents western and eastern regions. Other major features include the Yampi Desert in the north-west, the Osenia Cliffs (in the east) which formed a land bridge between Osenia and the nearby continent of Indra when Indra collided with Osenia and Air's Rock, a colossal mountain which rises from a desert region in the continent's center.

Overworld Regions
Osenia's overworld can be divided into two large regions according to the Monsters battled there in Golden Sun: The Lost Age.

West Osenia
Western Osenia is the larger of the two and approximately two thirds of the Continent's land mass, it is west of the Bollo Range. This region contains the large city of Alhafra on the northern coast, the Yampi Desert south of it, the Osenia Cliffs in the far west, Mikasalla in the south-west, Garoh east of Mikasalla and north of Garoh Air's Rock. Also of note is Osenia Cavern.

...

East Osenia
Eastern Osenia is smaller than the western region and contains only two areas: the quiet but gameplay-important fishing town of Yallam in the far north. And the optional dungeon style area of Taopo Swamp in the south-west.

...