Enough to make your head swim: World's largest pool which cost $1bn and holds 66m gallons is so big you can even sail boats on it 
  G( r, l! L: P' h" e$ N公仔箱論壇The Crystal Lagoon at San Alfonso del Mar resort, Chile, is large enough for sailing and comes with its own fake beach6 g; i0 o" z8 K, _9 r! ^6 U 
By Lyle BrennanTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。. c% ~1 t9 q! Y% P& H 
PUBLISHED: 08:14 GMT, 21 May 2012 | UPDATED: 12:14 GMT, 21 May 2012 
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2 ]3 P. s! B, s% E% r# D8 Utvb now,tvbnow,bttvbAt the San Alfonso del Mar resort in Chile, a quick dip could well turn into a marathon.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。& i) ?) ]* C$ Z7 y: e 
TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。$ P( w, Z0 B  q! D 
Swimming a length in this, the world's largest outdoor pool, would mean stroke after stroke for more than three fifths of a mile - that's 20 Olympic-size swimming pools. 
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% o* V( \7 Y* F( r/ K! stvb now,tvbnow,bttvbThe enormous man-made lagoon is set halfway up the country's Pacific coast, in the city of Algarrobo, and is filled with 66 million gallons of crystal clear seawater.公仔箱論壇: S6 N* K3 a- [2 R  A5 b 
 
$ W/ M+ z! Z2 q+ {. `. s$ ^TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。   
5 T: ~3 p* ~  H$ {2 v- m1 R公仔箱論壇A little slice of the Pacific: The world's biggest pool is three fifths of a mile long and draws water from the ocean, cleaning it and allowing the sun to warm it to 26C+ O8 c7 y, @! K6 P 
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CRYSTAL LAGOON IN NUMBERS 
7 R4 B0 F% g$ q) Z. a0 @+ N公仔箱論壇- Capacity: 66 million gallons
 - Length:3,323ft
 - Area: 20 acres
 - Depth: Up to 115ft5.39.217.76% T: z  N! B" A4 D0 E
 
 - Temperature: heated to 26C2 F0 j; S$ [7 s' ^2 x4 p
 
 - Estimated cost of construction: £1billion
 - Cost of upkeep: £2million a year
 - Construction time: Almost five years
 
8 ~7 }. t7 H9 q$ j* w; @, F* v - Completed: December 2006
 - The competition: More than twice the length of the next biggest outdoor pool
 
  
) [6 R2 t" c5 @0 ]# B, e+ H* a3 L5.39.217.76It also hold the Guinness record for the world's deepest - so if you don't feel like diving 115ft to the bottom, it might be best to bring some spare goggles.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。6 m/ J9 l) s% b2 \4 M9 b% A; a, v 
 
# m9 P- H' Q. M# K) S4 b) \The pool opened in December 2006 after nearly five years of construction work and is said to have set developers back as much as £1billion.  
/ s4 n9 Q6 D5 a( t9 v公仔箱論壇And on top of that eye-watering initial cost, it takes a further £2million a year to keep it in working order. 
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  t% v8 H+ }1 vIt uses a computer-controlled suction and filtration system to suck water in from the ocean at one end and pump it out at the other, while the sun warms it to 26C - nine degrees higher than the sea. 
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6 ~7 e' C' b: x/ }( o" ?tvb now,tvbnow,bttvbThe pool's incredible dimensions leave the next biggest floundering in its wake, with the Orthlieb in Morocco measuring a mere 1,575ft long. 
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) B/ _: F9 g/ }% T; U. j( j, [Lost at sea: A bather floats on the amazingly clear waters of the vast Crystal Lagoon, at the San Alfonso del Mar resort, Chile公仔箱論壇. J+ W7 s  q1 C 
 
+ O- z: y9 S# ?- E% NTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。   
1 `& F8 A' N$ jTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Dazzling blue: A small boat sails round a platform jutting into the lagoon's 20-acre expanse 
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Big drip: The pool, shown left next to the city of Algarrobo, is thought to have cost £1billion to build and runs up £2million a year in maintenanceTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。8 t( f: s+ h2 w0 O6 f0 d 
 
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Man-made paradise: A computer-generated image of the San Alfonso del Mar resort shows how its semi-circular artificial beaches and filtered waters sit right next to the real thing 
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1 x" W& R8 K, H$ a" a( b) DWhatever floats your boat: The record-breaking dimensions mean visitors can paddle or sail their way around the pool instead of swimming5.39.217.76$ k0 J2 ^2 c. M2 s9 P1 ~/ F) y 
 
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- S! q+ T# U" E' b5 ^8 |0 yBy the sea: A couple stroll along the shores of the artificial lake, which is also the world's deepest swimming pool at 115ft |