Lake Pirstjoi

From PathfinderWiki

Lake Pirstjoi is a massive, circular body of water in Iobaria's Deeprun Crevasse, formed by the Myrfrus River after it enters a broad plain in the Crevasse's southern reaches.1 The island known as Zvartjan by the local centaurs rises above the otherwise placid lake, and spreads a thick fog over the lake during the day, while at night the lake echoes with frightening screams and howls.