I've read a few posts where people are getting walkie talkies for their children to have while they explore the ship. Is it safe to let your child roam around without supervision? We'l l be cruising with my nieces, 11 and 12 and my daughter who is 7. I've never been on a ship before so I'm not sure how well the railings are guarded in case they decide to take and look and fall overboard. You know how kids are. I'm not letting my daughter out of my sight unless she's in her club, but I didn't know how my brother would feel if his girls wanted to have a look around without an adult.