
! G0 s% I/ a4 U4 _) D) E& aTVBNOW 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。One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico. tvb now,tvbnow,bttvb* Z$ P% W! |2 O$ q) r6 A& m
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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.5.39.217.773 B& H' A& p, B& w2 `1 l2 l; A. @
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。$ ^. X8 Q2 b! X1 k4 E2 l

* }# h/ i, H" G( V' i- A4 c公仔箱論壇Divers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.tvb now,tvbnow,bttvb7 `. @6 q" i+ e: U) E+ U7 G
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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,bttvb3 i/ r3 V& M" V9 q
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% _' p* m8 b: u3 Q: k% N& \0 g公仔箱論壇In another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |