Anyone been? Do you have any tips. eg. shore excursions at the ports? It's my first time on Royal Caribbean. I've only cruised on Carnival twice in the past. I enjoyed it as did my kids & I'm expecting RC to be similar but nicer. I'm especially hoping there are teenagers on the cruise so that my DS finds friends to hang out with like he did on Carnival, but I'm a bit worried that maybe not many families with teens would be doing a cruise to Iceland.