Its name derives from the name of the captain of a Spanish galleon, Joseph Polloni, which sank in 1753 in the place loaded with goods bound for Buenos Aires. After several tragedies, in 1881 the lighthouse has light reaches 21.80 miles, and white flashes every 12 seconds lighting was inaugurated. In 1976 the lighthouse was declared a historical monument. The song "12 seconds of darkness," Jorge Drexler refers to this lighthouse, as well as several tracks on the album of the same name.
The stable population is small, mainly made up of fishermen, artisans and stable staff lighthouse. In tourist season (January to March) has opened several restaurants, inns and houses for rent.
Most homes do not have electricity, except for places with their own generator. There is also no street lighting, which is one of the characteristics of the site, which allows, on a clear night, appreciate the night sky like few other places on the Uruguayan coast.
By decree of July 20, 2009 protected under the category "national park" Cabo Polonio and marine space of 5 nautical miles was declared natural area, inclyendo Torres Islands and the Islands of Castillo Grande. The National System of Protected Natural Areas was established by Law No. 17.234 of February 22, 2000.
See more about the location of Cabo Polonio
See also information on Buenos Aires.