Their <a href=http://www.sailwinifred.com>web site</a> was helpful, except for not finding the prices and now that you have posted them, I can see why they don't have them on the web, WOW. They seem pretty expensive to me, even considering what looks to be the high quality of the service. But, I'd bet you wouldn't say, after the excursion, "boy that was a waste of money". They would be perfect for me if they offered scuba too.
<img src=http://www.cruisemates.com/animated/Sunwht.gif>