Ishau was a coastal village in Chult before it sank into the sea. By the late 15th century DR, the village's stone buildings sat completely underwater in Refuge Bay, a few miles from shore. Hunter sharks and reef sharks inhabited the sunken ruins, competing with plesiosaurs for the position of top predator. All of the inhabitants feared and avoided the vicious sea hags who occasionally scoured the ruins for human remains and waterlogged trinkets.[1]