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One 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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; U. @ C7 l" B7 D$ x5 D, {) ^tvb now,tvbnow,bttvbDivers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.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。/ n. Q6 n. r9 g7 s
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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,bttvb7 N# T( q# l) Z: N; ^
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- X% h8 m4 G. w; S8 o4 q8 Vtvb now,tvbnow,bttvbIn another of Martyn's photos Helen Rider swims through the narrow confines of Taina Cave near Santo Domingo in the Dominican Republic. |