Doing a 4 night cruise on the Dream just before Christmas. Haven't been on a Disney cruise since 2009, and that was a 3 night so we just stayed on the ship in Nassau. Any suggestions for things to do with teens (DS16 and DD13)? Not really looking for beach since we'll do that at CC. Thinking more like a food tour, scavenger hunt (saw something like that online), historical tour, etc. They both hate to shop, so that is out!