Vistula Lagoon Vistula Lagoon The Vistula Lagoon (; or "Kaliningradskiy Zaliv"; ; ) is a brackish water lagoon on the Baltic Sea roughly 56 miles (90 km) long, 6 to 15 miles (10 to 19 km) wide, and up to 17 feet (5 m) deep, separated from Gdańsk Bay by the Vistula Spit. It is now known as the Vistula Bay or Vistula Gulf. The modern German name, "Frisches Haff", is derived from an earlier form, "Friesisches Haff". The lagoon is a mouth of a few branches of the Vistula River, notably the Nogat, and the Pregolya River. It is connected to
Kokkilai Lagoon Kokkilai Lagoon Kokkilai lagoon (; ) is an estuarine lagoon in Mullaitivu District and Trincomalee District, north-east Sri Lanka. The town of Kokkilai is located on a sand bar between the lagoon and the Indian Ocean. The lagoon is fed by a number of small rivers, including Churiyan Aru. It is linked to the sea by a narrow channel that is very often blocked by the sand bar. The lagoon's water is brackish. The lagoon is surrounded by a densely populated region containing cultivated land, scrubland and open forest. The land is used for prawn fishing, paddy cultivation and some