kluuvi (englanniksi)

shallow body of fresh or slightly brackish water typical for some coastal regions of the Baltic Sea (s: geography)
former sebay which has been separated from the sein the process of postglacial rebound. Typically 'kluuvi' has no catchment basin of any significance (s: geography)
and it gets new water only through direct precipitation or occasionally from the sea when the sea water level is high (s: geography)