
+ u- f4 R( [+ B- t/ n公仔箱論壇One of Martyn's diving companions, Robbie Schmittner, in a huge flooded cave in Mexico. + d; [% j( S9 L" c$ t, @* H
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5 E9 |" m8 t' i& l+ b公仔箱論壇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.
: ^0 n! k3 k: b9 M9 k8 b, Y& ITVBNOW 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。5.39.217.768 O5 {) d3 v. Y" J. u+ F

7 ~: z# W- Z- j4 t5 I3 ^4 htvb now,tvbnow,bttvbDivers often use guide-lines to keep them on track in the murky depths. Getting lost can be fatal.
i* w" g. S$ o2 X公仔箱論壇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。0 W7 r+ h" p( d) | h% z

4 s1 x9 t/ X2 \% _ B3 }- cTVBNOW 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。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. |