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One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico. 公仔箱論壇8 k! H: V6 T: |; v5 i2 Z
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* r0 X$ o) r2 {5 a& s Z8 y1 G# vDivers 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.
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Divers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.
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: L/ U5 E) @2 k$ j' L& |5 l- x+ RDeep 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 i( z! m+ f* f
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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。* A7 S( C* \ _6 v2 q
In another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |