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
San Elijo Lagoon Rancho Santa Fe inland and the Pacific Ocean to the west. The Reserve encompasses an area of 915 acres. The lagoon is the terminus of the Escondido Creek watershed which covers an area of 54,112 acres. The water in the lagoon comes from the Escondido Creek watershed and the Pacific Ocean. The Reserve is managed by the California Department of Fish and Game, County of San Diego. and San Elijo Lagoon Conservancy. Within its 915 acres there are 6 plant communities; coastal strand, salt marsh, riparian scrub, coastal sage scrub, freshwater marsh, and mixed chaparral. There are more than 300