Depending on the ship, most are pretty soundproof. If you're going with a group, go to a travel agent together, and basically decide what you want beforehand. If you're going to be 8, you could probably sit together, but if you're 12, it would be more likely than not, 2 tables of 6 each. Find a reputable travel agent that specializes in cruises only if possible. Have you like and dislikes listed, and wanting to have fun without a lot of children around. I'm sure they'll be able to work something out for you. Trying to get possibly 6 couples to agree on something is going to be the task. We're working on something for next year, and can't even get 3 couples to agree. That's where you'll have the biggest problem.