blue holes http://kmuw.org en Into It: Blue Holes http://kmuw.org/post/it-blue-holes <p style="padding: 0px; margin-bottom: 16px; border: 0px; outline: 0px; font-family: 'Trebuchet MS', Arial, sans-serif; vertical-align: baseline; color: rgb(85, 85, 85); line-height: 15px; ">Blue holes are ancient, flooded caves. To date, over one thousand blue holes have been discovered both inland and in shallow waters from Australia to Egypt to Belize. These water-filled cylinders, like sink holes, are portals to vast caverns, forests of stalactites and stalagmites, hundreds of feet of sheer drop leading to winding tunnels that can branch out for miles.</p> Tue, 16 Aug 2011 13:00:00 +0000 Andrew Bales 2443 at http://kmuw.org Into It: Blue Holes