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One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico.
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+ a2 u7 G: v g4 {/ g6 u2 gDivers 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.8 W- l4 N" c( f
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% c% s) Q" c" Y9 qtvb now,tvbnow,bttvbDivers 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 centigrade
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/ i% P- N) S# k5 K2 k) @1 p; F6 P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. |