Lake ErmistuLake Ermistu is a lake in southwestern Estonia. It is mostly located in the village of Ermistu in the municipality of Pärnu, Pärnu County, with part of a small bay extending into neighboring Ranniku and Rammuka.Physical descriptionThe lake has an area of, and it has 12 islands with a combined area of. The lake has an average depth of and a maximum depth of. It is long, and its shoreline measures. It has a volume of.