Michael: I "Googled" and found several sites. This one for example: http://tinyurl.com/2a67va Bill Donovan At 10:16 AM 6/2/2007, Michael Liddle wrote: >In the most recent issue of Caribbean Travel and ife, on the inside cover >was an ad for Cozumel and showed a canoe that had a completely clear surface >covering...snip....