The Largest Swimming Pool In The World
San Alfonso Del Mar

San Alfonso Del Mar Aerial View (Photo Credit: QuĆ³rum Comunicaciones / CC BY-SA 3.0)
San Alfonso del Mar is a private resort in Algarrobo, Chile. The resort is recognised as having the world’s largest swimming pool. The pool is 1,013 m long, covering 20 acres, containing some 250 million litres of seawater with a maximum depth of 11.5 ft.

San Alfonso Del Mar Swimming Pool (Photo Credit: Kyle Pearce / CC BY-SA 2.0)
The water is pumped from the Pacific Ocean, filtered and treated. The pool was developed by Fernando Fischmann and his Chilean company Crystal Lagoons built the pool.

San Alfonso Del Mar Swimming Pool (Photo Credit: Cristian Borquez / CC BY 2.0)
This swimming pool was opened in December 2006. The total cost of construction at about US$3.5 million for the filtration system alone and it takes almost US$4 million in annual maintenance.

San Alfonso Del Mar Swimming Pool (Photo Credit: Cristian Borquez / CC BY 2.0)