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
Ōkārito Lagoon more than 76 other bird species have been recorded at Ōkārito. These species include migratory waders, gulls, shags and terns on the estuarine mud flats as well as black swans, scaup, crested grebes, and ducks in freshwater areas. Tui, bellbird, kingfishers, pigeon, crakes, fern birds, and bitterns and crakes inhabit the wetland areas. The rarest species of kiwi, the Okarito kiwi, or Rowi, is also found near the town of Ōkārito. It is also the only nesting ground for white herons in New Zealand. Ōkārito Lagoon Ōkārito Lagoon or Okarito Lagoon is a coastal lagoon on the West Coast of