Tuesday, April 27, 2010
Surely 'an underwater river' is a contradiction in terms . . . but some amazing photographs purport to show a river beneath the water, all right!
Note the diver circled in red. According to Bin's Corner, where I found these pictures, the 'river' is a layer of hydrogen sulphide at the bottom of the Angelica Cenote in Mexico.
There are more photographs at the link. Fascinating!