Penny has a point here. I have two young teens and while they are now in the same age bracket, they used to have the same problem as yours. They didn't want to go by themselves to their age group's clubs. Realize that there will be many familys with the exact same issue as yours. The kids always seem to find each other and the whole group forms a "crowd" that hang out together. They will do their age groups activities when they want and then meet back together. So your kids will most likely end up doing the same type of thing. If they just get out there and go, they will find these the "tween/teen" group... They will have fun!
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007