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One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico.
" } `5 _. L# Q* A: u; 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。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。1 A3 s. X2 v* {+ E
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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.公仔箱論壇+ ]/ L$ M; y6 |% \
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$ x e8 z( Y( `, @0 \$ k9 e- L3 HDivers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.
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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 centigrade5.39.217.77+ |4 M+ B' q1 e: t5 z' m7 [, H
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' }6 p: @5 x; l8 R# o5.39.217.77In another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |