My husband and I are planning to take a cruise with another couple to celebrate both of our 10 year anniversaries.  However, none of us has ever been on a cruise before. Our friends want to keep the trip to around 5 days and are interested in visiting Cozumel/Belize on the Royal Caribbean.  However, I am a bit claustrophobic, prefer fewer people, and a more mature setting, and just looking at pictures of the RC boats makes my blood pressure rise.  Would I be making a huge mistake to take a RC cruise?  Any other suggestions?  Thanks for any input!