World Amazing Stuff: Largest Swimming pool

Largest Swimming pool

The San Alfonso del Mar Seawater pool in AlgarroboChile is the world's largest swimming pool according to the Guinness World Records of 2013. 

The pool is 1km long, covering 20 acres, containing some 250,000,000 liters of seawater, with a maximum depth of 3.5 m (11 ft). It uses water pumped, filtered, and treated from the Pacific Ocean