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
Keta Lagoon Keta Lagoon Keta Lagoon, also called Anlo-Keta lagoon, is the largest of the over 90 lagoons that cover the 550 km stretch of the coastline of Ghana. This lagoon is 126.13 km in length. It is located in the eastern coast of Ghana and separated from the Gulf of Guinea by a narrow strip of sandbar. This open salty water is surrounded by flood plains and mangrove swamps. Together they form the Keta Lagoon Ramsar site which covers 1200 km There are seasonal inflow of sea water during high tide from the Gulf of Guinea and regular inflow of rivers.