San Alfonso del Mar

San Alfonso del Mar, sometimes spelled "San Alphonso del Mar", is a private resort in Algarrobo, Chile, about 100 km (62 mi) west of Santiago.

[1] The resort has one of the world's largest swimming pools.

[3][4] The pool is 1,013 m (3,323 ft) long,[4] covering 8.2 ha (20 acres),[4] containing some 250 million litres (66 million US gallons)[5] of seawater, with a maximum depth of 3.5 m (11.5 ft).

[6] The water is pumped from the adjacent Pacific Ocean, then filtered and treated.

Crystal Lagoons, a company created by Fernando Fischmann in addition to Inmobiliaria El Plomo and the lead architects Marques + Garcés & Asociados Arquitectos, developed the lagoon.33°21′S 71°39.2′W / 33.350°S 71.6533°W / -33.350; -71.6533