Here’s a short video highlighting some underwater shots in crystal-clear Nellie Lake in Killarney Provincial Park.  The lake is so clear because of the ill-effects of decades of acid rain exposure.  The video is actually the tail-end segment from a longer ( 1/2 hr. ) television proposal we put together a few years back.  Here’s the YouTube link   http://www.youtube.com/user/TheOneCanoe?feature=mhee#p/u/0/Kchw5oV3GWM

Cheers   Wayne