Xeycahiti is a large island in southwestern Abmarah within the Kourā Expanse. It is marked by high peaks and active volcanoes that separate its northern tropical half from its arid southern half. The Excansuyu Alliance is the largest faction on the island. The Aethian Dominion only controls a small eastern portion of the island in the modern day, but it used to be fully within their control during the first era when the island was called Xeyrius.

The northern half of the island is made up of a dense rainforest, often said to be arcane in nature. The southern half is arid, but contains many farms due to the water from the Voloka'i Fiords. They are divided by a small yet tall mountain range full of many volcanoes.