* Oceans: The vast majority of Earth's salt water is found in the oceans, covering approximately 71% of the Earth's surface.

* Seas: Seas are smaller bodies of salt water that are often partially enclosed by land.

* Inland salt lakes: Some lakes, like the Dead Sea and the Great Salt Lake, are very salty due to high evaporation rates and limited water flow.

* Underground aquifers: Some aquifers, especially those in coastal regions, contain saltwater.

Note: While salt water is found in these locations, freshwater sources like rivers, lakes, and groundwater also exist.