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One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico. tvb now,tvbnow,bttvb3 G' S' D* A1 E+ s0 {
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% ^6 B6 q) @8 o. [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.公仔箱論壇* B0 e, a/ {$ r+ m. Y! w
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。" k9 e" t+ x. }. }6 y. v

- A5 q) i- K9 X9 {% h3 h* b5 L g* M5.39.217.77Divers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.$ g0 i: q2 x5 U, X$ J6 [- v( Z
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+ z2 c+ {! _( B8 |. P Qtvb now,tvbnow,bttvbDeep 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 centigrade
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( L1 V! U1 h4 M* r1 f' \/ w& m8 {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。
" X' Z9 x U0 {4 b. W4 S% f) n+ Atvb now,tvbnow,bttvbIn another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |