San Alfonso del Mar, a private resort in Algorrobo, Chile, is home to the world’s largest swimming pool. It is located about 62 miles, west of the country’s capital, Santiago.
Developed and built by Fernando Fischmann’s company, Crystal Lagoons, the pool opened in December 2006. It took them five years to build the 1,013 meters long pool, which contains 66 million gallons of crystal clear seawater. It has a maximum depth of 11.5 feet.
While construction for the filtration system alone reached an estimated $3.5 million, the other facilities in the area was around $1.5 to $2 billion. For the annual maintenance, the resort spends $4 million annually.
Aside from being the largest, the pool boasts a sophisticated and a one-of-its-kind technology. It has a worldwide patent, where water is collected from the Pacific ocean, then filtered and treated, making it clear and 9 degrees warmer compared to the sea during summer. Basically, this innovation allows the resort owner to create such insane lagoon of about the size of 20 Olympic pools.
Check out these videos of this expansive pool:
You can also find this pool and other spectacular pools like it here: 7 Most Beautiful Swimming Pools