We just spent the last two weeks researching sialing trips to stingray city and finally booked with the Buccaneer.
We choose it over the Snorkelers Dream because its the same number of snorkeling sites, transport is included(Snorkeler's Dream is extra) and Buccaneer has a cash bar on board, Snorkelers Dream doesn't. Plus the Buccaneer is New and obviously in great shape!!! Snorkeler's Dream is $34 +$6 for the cab per person and Buccaneer is $39 so a better deal overall.
We found it through Cayman Islands Discounts ,
http://caymanislandsdiscounts.com/St..._Excursion.htm
http://caymanislandsdiscounts.com/St..._Excursion.htm
You can book it with LIVE CHAT so its super quick and we didn't even have to wait for an email response. Gotta love technology!!