
+ q& r( I h. @4 L7 b# ]5.39.217.77One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico.
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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.
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" V$ M3 v+ [; Q7 B6 R. b- S! ~1 q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,bttvb6 ?2 U, w" u4 y9 m
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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 centigrade
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In another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |