SAN ALFONSO DEL MAR (Algarrobo, Chile) - Opened in 2006. It is the Guinness World Record largest pool in the world. San Alfonso's pool is 1,000 meters long, 115ft deep. The pool covers an area of 7.7 hectares (19 acres) that holds 250 million liters of water. The pool water is pumped and filtered from the Pacific Ocean.
