% T' n2 J K$ `' }' w' l. MEnough to make your head swim: World's largest pool which cost $1bn and holds 66m gallons is so big you can even sail boats on it 1 |4 u) G* B/ g- W/ u. B. c6 j7 k( v公仔箱論壇The Crystal Lagoon at San Alfonso del Mar resort, Chile, is large enough for sailing and comes with its own fake beachtvb now,tvbnow,bttvb% l. S# z: f0 ~0 K, G
By Lyle Brennan公仔箱論壇* e" K) V4 {4 R' n/ z
PUBLISHED: 08:14 GMT, 21 May 2012 | UPDATED: 12:14 GMT, 21 May 2012 4 E0 i+ w7 j3 P: ~* x" k* Utvb now,tvbnow,bttvb ! ^- l7 x- S* t" hTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。At the San Alfonso del Mar resort in Chile, a quick dip could well turn into a marathon.5.39.217.763 k! Z9 S# W( L% ^# j0 `# v
; W/ P; Q9 }8 Z5 U" }3 c9 D3 cSwimming a length in this, the world's largest outdoor pool, would mean stroke after stroke for more than three fifths of a mile - that's 20 Olympic-size swimming pools.tvb now,tvbnow,bttvb* U/ g# @& R: x
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The enormous man-made lagoon is set halfway up the country's Pacific coast, in the city of Algarrobo, and is filled with 66 million gallons of crystal clear seawater. + l7 \; T8 Z/ e" }4 u4 z2 d% T- ^8 D5 s' l 公仔箱論壇" `: m+ R( V" r
A little slice of the Pacific: The world's biggest pool is three fifths of a mile long and draws water from the ocean, cleaning it and allowing the sun to warm it to 26CTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。! |$ m4 t2 G! s. ]* j" W' H! G* j
公仔箱論壇& k7 d* x( D7 p# K( f CRYSTAL LAGOON IN NUMBERS 6 M% m+ Z. A E Y- N QTVBNOW 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。
Capacity: 66 million gallons
Length:3,323ft
Area: 20 acres
Depth: Up to 115ft6 x. \) c( J: B7 ~6 ~# s5 u
Temperature: heated to 26C % w1 q$ e; X9 d N$ n6 u
Estimated cost of construction: £1billion
Cost of upkeep: £2million a year
Construction time: Almost five yearstvb now,tvbnow,bttvb& a- S( ~* `& y1 l: g, P0 @% b
Completed: December 2006
The competition: More than twice the length of the next biggest outdoor pool
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It 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. ! @& b1 P5 H5 V9 w% p5 k9 D& T公仔箱論壇 & a' i8 o% A* _: `公仔箱論壇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. 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。7 Y& x" Y$ R9 d4 |4 l( t4 A
And on top of that eye-watering initial cost, it takes a further £2million a year to keep it in working order.tvb now,tvbnow,bttvb( u( N$ D3 B& r" @
- x$ j3 b$ `( T7 v' F$ c% D' W+ s公仔箱論壇It 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.公仔箱論壇! b- k2 j* c: W6 p, n
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The pool's incredible dimensions leave the next biggest floundering in its wake, with the Orthlieb in Morocco measuring a mere 1,575ft long., ^' o5 U) L4 ~1 |* ~
+ ~) g' ]) E7 } / x' W; C7 q8 {5 t2 b) OLost 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( Z3 s+ H y. E6 J
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Dazzling blue: A small boat sails round a platform jutting into the lagoon's 20-acre expansetvb now,tvbnow,bttvb/ S5 `% ~2 L) _& p) [$ {
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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 maintenancetvb now,tvbnow,bttvb0 o3 e8 z& r" F1 z0 ~
公仔箱論壇+ `2 z, A. L5 j. R 7 I9 k) X( s' R+ h3 }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 5 _3 c+ ?. \* V; [& D! a/ GTVBNOW 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。公仔箱論壇6 X9 ], Z8 b v8 v% V6 S- c ; M4 i1 Z E; E4 s8 t+ n& [5 AWhatever floats your boat: The record-breaking dimensions mean visitors can paddle or sail their way around the pool instead of swimming % h3 V9 d0 m& j# m0 P% Y5 Jtvb now,tvbnow,bttvb# F% g4 C( l/ Q4 \, _ ' k1 f6 m! N( @8 D# LBy the sea: A couple stroll along the shores of the artificial lake, which is also the world's deepest swimming pool at 115ft
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