A complex of shallow (<4 m) bays and small islets on the southern coast of Saaremaa island, with vast reedbeds, coastal meadows and saltmarshes. The main economic activities are fishing, sheep-grazing and forestry.
Kasti bay is an important staging area for migrating geese and a notable breeding area for several waterbirds. Significant proportion (³1%) of national population breeding at site: Sterna albifrons (min. 10 pairs).
BirdLife International (2020) Important Bird Areas factsheet: Kasti bay. Downloaded from http://www.birdlife.org on 12/07/2020.