Szczecin Lagoon Szczecin Lagoon Szczecin Lagoon, Stettin Lagoon, Bay of Szczecin, or Stettin Bay (, ), also Oder lagoon (), is a lagoon in the Oder estuary, shared by Germany and Poland. It is separated from the Pomeranian Bay of the Baltic Sea by the islands of Usedom and Wolin. The lagoon is subdivided into the "Kleines Haff" (, "small lagoon") in the West and the "Wielki Zalew" (, "great lagoon") in the East. An ambiguous historical German name was "Frisches Haff", which later exclusively referred to the Vistula Lagoon. From the South, the lagoon is fed by several arms of the
Batticaloa Lagoon (Ampara district) in the south. This lagoon opens into the sea at two points. One in the southern end of the lagoon at Kallar and the other is midway of the lagoon at Palameenmadu which is close to the Batticaloa town. Both are narrow and approximately 200 m wide. The width of the water flow at their openings varies with the seasons. During the dry season the width of the bar mouth of the lagoon decreases and gradually it get closed with the onset of the north east monsoon which piles up the sand bar by the end of dry