Debris on the shoreline of Bombay Beach at the Salton Sea. The Salton Sea is much saltier than the ocean because it used to be part of the Gulf of California. As the land changed, an area in the south became revealed, separating the Salton Sea from the Gulf. Up to 6 feet of water evaporates each year, leaving extra salt in the water. The salt causes accelerated decay of the what is left of the docks that once covered the landscape, and the salt kills the fish. Once a resort town, Bombay Beach is now a run-down field of debris, though there are still residents of the city.