I'm a mum of a 35 year old son who works in New York. As I only see him once a year, our time together is extremely precious. We are planning to take a cruise on Navigator to New England next September. Is the vibration evryone talks about a worry? This will be our first cruise ever (and at my age, probably my last) so want to make sure we are making the right choice. We get on extremely well together, but I was wondering whether he will feel comfortable. He definitely doesn't want to bother with a dinner suit.