Published On May 3, 2011
May 3, 2011 — An Australian team has made a record-breaking dive in what may be the world's deepest coldwater cave. But the explorers still haven't reached the end of this New Zealand cave, thought to lead to the mysterious source of the Pearse River.
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Record Cave Dive Leaves Mystery | National Geographic
• Record Cave Dive Leaves Mystery | Nat...
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