The Syvash or Sivash, also known as the Putrid Sea or Rotten Sea, is a large area of shallow lagoons on the western edge of the Sea of Azov. Separated from the sea by the narrow Arabat Spit, the water
Natural-colour satellite image of the Syvash
The Salinas (c. 1820)
Soviet soldiers crossing the Syvash in late 1943
Syvash waters turned reddish by Dunaliella salina microalgae