Photo of the Day
A canyoneer in Australia
March 13, 2012
Black Hole of Calcutta, Australia
This Month in Photo of the Day: National Geographic Magazine Features
"It feels like being swallowed by the Earth," says photographer Carsten Peter of the Black Hole of Calcutta in Claustral Canyon. Experienced canyoneers avoid it after heavy rains.
See more pictures from the October 2011 feature story "Deep Down Under."
See more extreme adventure photos »
See pictures of climbing shot by our readers »
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