Cáhuil

thumb|Salt mound in Cáhuil Cáhuil (, ) is a Chilean village located south of Pichilemu, at the mouth of the seasonal Nilahue Estuary, in the O'Higgins Region. Its economy is based on the production of sea salt, oysters, and mussels. The estuary is suitable for fishing, swimming, and boating.

== Salt deposits == The production of salt is a very old practice in the area. The indigenous people were known to have extracted salt in a very rudimentary way. Production has increased using modern methods. As of 1978, more than 60% of the population of Cáhuil lives on the proceeds of salt production, unrelated to industrial enterprises.