We went last year for spring break with an 8,10 & 11 year old. I got permission for the 8 year old to hang out with the other two and I gave them exact places to meet us when they left Camp Carnival.
The first couple of days they were a little nervous but then they chose going there rather than things with us.
Take a set of walkie talkies and that might alleviate some stress about knowing where he was.
We did have to get them for lunch and then could sign up for them to eat supper with Camp Carnival they did it about half with us half with the children's program. One of the formal nights they had a coke tail party during our cocktail party.
Carnival Freedom June 2009
Crown Princess March 2009
Carnival Glory January 2008
Naviagator of the Seas Mar 07
Sovereign of Seas Oct 06
Carnival Glory March 2005
Nordic Empress 1996