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Record Breaking San Alfonso Del Mar Swimming Pool

31 May 2012
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This man made pool sucks water directly from the sea sing a computer-controlled suction and filtration system. Water is pumped from the ocean into the pool where the sun warms it to 26C - nine degrees higher than the sea. The pool holds 250 million liters (66 million gallons) of water and is navigable in small boats. Its turquoise waters are so crystal clear that you can see the bottom even in the deep end.

Record Breaking San Alfonso Del Mar Swimming Pool - 01


66 million gallons




20 acres


Up to 115ft


heated to 26C

Estimated cost of construction:


Cost of upkeep:

£2million a year

Construction time:

Almost five years


December 2006

The competition:

More than twice the length of the next biggest outdoor pool

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