World's Largest Swimming Pool

San Alfonso del Mar is a resort located in the central coast of Chile, frequently noted because of its 1,000-meter long, 19-acre outdoor pool, which holds a Guinness world record. The resort’s large pool utilizes a technology developed by the Chilean company Crystal Lagoons, which uses water pumped from the Pacific Ocean, that is then filtered and treated for supply to the pool.







According to the Guinness World Records, the largest swimming pool in the world is San Alfonso del Mar Seawater pool in Algarrobo, Chile. It is 1,013 m (3,324 ft) long and has an area of 8 ha (20 acres). It was completed in December 2006.

It dwarfs the world's second biggest pool, the Orthlieb -- nicknamed the Big Splash -- in Morocco , which is a mere 150 yards long and 100 yards wide. An Olympic size pool measures some 50 yards by 25 yards.

It took five years to build, the lagoon cost an estimated $US1.5 billion ($1.74 billion), covers an area of eight hectares and the 2.5 million litres of water needed to fill it is drawn from the Pacific Ocean.

Its turquoise waters are so crystal clear that you can see the bottom even in the deep end.

The man-made lagoon contains 250,000 cubic metres of water that resort guests make use of small boats and kayaks to ferry around the pool.

Children play in the clear waters of the 3,323 ft long pool

The sun warms the water to 26c, nine degrees warmer than the adjoining sea.

Chile's monster pool uses a computer- controlled suction and filtration system to keep fresh seawater in permanent circulation, drawing it in from the ocean at one end and pumping it out at the other.

Chilean biochemist Fernando Fischmann, whose Crystal Lagoons Corporation designed the pool, said advanced engineering meant his company could build "an impressive artificial paradise" even in inhospitable areas.

"As long as we have access to unlimited seawater, we can make it work, and it causes no damage to the ocean."