Bachi is the most populous nation in the world. Its sole land border is with Garzes, to the northeast. It is bordered to the north by the Magmaean Sea, to the west by the Serenic Ocean, to the south by the Gondwanese Ocean, and to the west by the Yaq-Ebbes Ocean.

Bachi is dominated by the Great Blind Desert, which spans over about 85% of its total land area.