Callie's Island was a small landmass located in Eraystor Bay, which commanded a strategic position over the Princedom of Emerald's capital city of Eraystor.

For this very reason it had been fortified along with Long Island and South Island. Due to the overwhelming firepower of the Charisian military in previous battles, Callie's Island surrendered very quickly when summoned to do so in the Battle of Callie's Island. (BSRA)