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One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico. tvb now,tvbnow,bttvb$ p% B5 R Q2 w' ~ f' \: H
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6 R3 w8 ~7 D8 ?5 l% I. `& X- e公仔箱論壇Divers carry remote underwater flash guns to illuminate this image, taken in what is probably the world's biggest underwater tunnel, Weebubbie Cave beneath the remote Nullarbor Plain of western Australia.( |2 |( g8 {/ R6 c2 S1 E/ u, B* ?3 [
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Divers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.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。+ s& P4 N: {5 b, }
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. @. D+ p( n7 ^- U5 d: w* C公仔箱論壇Deep and dark doesn't always mean cold: Jenny Pinder swims through the underwater passages of the Grotta Giusti Cave in Tuscany, Italy. where geothermal activity heats the water to an amazing 35 degrees centigradetvb now,tvbnow,bttvb: I* `' h T; m5 d3 @
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; y- h$ w% j4 x- F8 C! V5.39.217.77In another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |