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
Jocks Lagoon Jocks Lagoon Jocks Lagoon is an freshwater coastal lagoon in north-eastern Tasmania, Australia. In 1982 it was designated a wetland of international importance under the Ramsar Convention. The lagoon is located approximately south-east of the town of St Helens. It lies partly on private land and partly at the southern end of the St Helens Point conservation area. One of a chain of wetlands along St Helens Point, it is inland from the coast, near a dunefield. About long and wide, it is dystrophic, with tannin-stained, low-nutrient, acidic waters. Water levels fluctuate with rainfall and reach a depth of .