The Belly is a body of almost enclosed water situated between the southeastern Three Rivers littoral and the western coast of Forosth and Stanov. It is bounded on the west by Surdije Bay and on the north by the Maingulf. The slave island of Seit is positioned in the middle of the demarcation between the Maingulf and The Belly, whereas a line drawn from Nelucium to the Ovirth Archipelago demarks it from Surdije Bay.
The entire expanse of water is home to pirates and slavers and must be avoided by honest folk. No city-state makes any attempt to police the water.