The 7 Largest Swimming Pools in the World - Page 2 of 9

San Alfonso Del Mar, Chile – 20 acres

The last super pool found in Chile – and the second-largest in the world – is the swimming pool at San Alfonso del Mar. Part of a private residential resort, San Alfonso del Mar is based in the Chilean city of Algarrobo, roughly 62 miles from Santiago, the nation’s capital city.

At one point in time, this broke world records for the world’s biggest pool and holds an impressive 66 million gallons of water. The pool uses filtered seawater, which ensures the temperature remains warmer than the ocean water, with the complex covering a total of 20 acres.