While in Jamaica, go to Hedonism. Believe me, you'll see more than you want on the beach there.
I was in the Caymans several years ago, and we took the Sting Ray snorkel tour. While out, we were able to gather conch's for lunch. The guide on the boat would knock the tip off the end of the shell, and cut the conch out. He used the conch meat for our lunch. Tasted pretty good. I had a medium sized conch I didn't want the end knocked off. The guide told me to take it back to my condo and put it in a bucket of bleach. That would kill the conch. I tried everything and couldn't get the conch out. I ended up getting a couple of plastic bags and dousing the shell with my wife's perfume. I stuck it in my luggage, and preyed Customs wouldn't smell it. Luckily, I got it across with no problems. When I got home, my luggae had the worst smell you could imagine. My dad told me of a trick he used in the Phillipines during WWII to get conchs out of their shells. He told me to set the shell on top of a fire ant bed for a week or so, and they'd pick it clean. Sure enough, that sucker was clean as a whistle after two weeks.