Questions about tweeners on the CB.

[NthernLgts]

I'd like some advice from people who have taken their "tweener" kids on Princess, and especially on the Caribbean Princess. We are planning to do this for our almost 19 year old son in August. We may have mitigated some of the age issues as his G/F will be coming along, with the DW & G/F getting the balcony cabin (of course) and junior and I likely being inside across the hall (again, of course). Any suggestions on how to help them enjoy the trip will be appreciated as they will be too old for the kids activities but not quite old enough to join adults in the lounge areas. Thanks.