Atteka

Atteka is the southern continent in the Great Western Sea. It geographically resembles South America, though the architecture does not. The most prominent landmarks on Atteka are Jupiter Lighthouse and Contigo. Atteka was home to the advanced civilization of Anemos, the Jupiter equivalent of Lemuria.g

History
Long before the main storyline of the Golden Sun games, Atteka and Hesperia were in a constant state of war. Though the war was not elaborated on very much, at the end of the war, a truce was declared where the sacred treasure of Atteka, the Hover Jade, and the sacred treasure of Hesperia, the Shaman's Rod, were traded for a peace agreement. It wouldn't be until Felix's party appeared in Hesperia that the treasures returned to their rightful continents.