: R: ?: F7 f, b4 G4 s- ZEnough to make your head swim: World's largest pool which cost $1bn and holds 66m gallons is so big you can even sail boats on it ( g5 V S) m" b3 xtvb now,tvbnow,bttvbThe Crystal Lagoon at San Alfonso del Mar resort, Chile, is large enough for sailing and comes with its own fake beach 9 i- ?& v% Q! @: T7 P! jTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。By Lyle Brennantvb now,tvbnow,bttvb! w! m Y# ^5 H, G" }) _
PUBLISHED: 08:14 GMT, 21 May 2012 | UPDATED: 12:14 GMT, 21 May 20129 d; D! |1 ^1 B" t% M
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At the San Alfonso del Mar resort in Chile, a quick dip could well turn into a marathon. 1 Q, _* w5 c" N2 w N- b/ F; a) r3 r& b6 n: w7 j0 S. ?% t
Swimming a length in this, the world's largest outdoor pool, would mean stroke after stroke for more than three fifths of a mile - that's 20 Olympic-size swimming pools.5.39.217.767 O* n1 F0 D1 V& R3 Y1 O; a$ W/ f3 R
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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.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。8 m2 T% ^$ j4 ^; ]/ A% }
tvb now,tvbnow,bttvb8 N. g7 f7 i. _- U; _2 O" q + L5 T& i4 {3 I4 S$ ^' U' Qtvb now,tvbnow,bttvbA 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 26Ctvb now,tvbnow,bttvb0 m' y8 S, w9 ?& l% n
Construction time: Almost five years9 q/ k$ k7 N0 {' e' f8 W
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.公仔箱論壇! x3 g! H v2 K+ _4 F. d
7 E- l% _+ t0 v! c* t$ ^- fTVBNOW 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。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. 公仔箱論壇+ d% h* U5 B- m7 j& |& T' P
And on top of that eye-watering initial cost, it takes a further £2million a year to keep it in working order.* _! I r/ l# @6 o2 R0 F& J+ ^& s
5 V. d7 X- r$ Z" h; Ptvb now,tvbnow,bttvbIt 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. ) w8 h1 v; O: F3 G9 P ~5.39.217.76TVBNOW 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。 U2 B) ?* ]7 E, s6 ~9 d3 j6 U, q
The pool's incredible dimensions leave the next biggest floundering in its wake, with the Orthlieb in Morocco measuring a mere 1,575ft long. 2 j# h( V- k1 M5 L5.39.217.76公仔箱論壇; Y2 m4 i, K& m- i # l# ^. l. H$ _, d) U- P* ?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。Lost at sea: A bather floats on the amazingly clear waters of the vast Crystal Lagoon, at the San Alfonso del Mar resort, Chiletvb now,tvbnow,bttvb5 u$ p, s7 }! d8 @9 b: \
% ~# T5 u/ D2 f6 Q; A8 dtvb now,tvbnow,bttvb 9 `7 z# o7 {9 a) U5.39.217.76Dazzling blue: A small boat sails round a platform jutting into the lagoon's 20-acre expanse! x- r$ r9 k. w0 L
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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 maintenance ( H7 I) @) i. N2 g) B: k, e+ ?0 H/ x" t" u% Q8 b9 _/ l, `3 R , _ y# D" k0 D
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 7 G" A: H6 n; E8 x* {5.39.217.76+ y2 A( \" ^5 }: N8 M/ t 3 w" O1 [6 g+ f- f" c) 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。Whatever floats your boat: The record-breaking dimensions mean visitors can paddle or sail their way around the pool instead of swimming公仔箱論壇) K; S5 K2 m4 z+ T
5.39.217.763 `9 t, S) ~) {! f 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。3 y2 v3 T8 r& h( q3 j9 [8 c/ W8 w
By 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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