There was an extensive story published in The Oregonian newspaper, the story has a few parts.

Going Deep
A Portlander conquers her fears as she descends 140 feet into the Blue Hole off the coast of Belize

http://www.oregonlive.com/travel/oregonian/index.ssf?/base/travel/1083067075140130.xml
http://www.oregonlive.com/travel/oregonian/index.ssf?/base/travel/1083067128140130.xml