Hi Jennifer Droblas, welcome to Cruise-Chat. If you're children get bored, it won't be due to NCL's lack of activities. There is plenty for both young and old to participate in. They have a children's program, video arcade, swimming pools, hot tubs, gym, spa, games, food, tv, library, internet cafe. You name it, it's there. Of course, if your children aren't social and want to stay in the cabin all the time, it would be boring. NCL doesn't have rock climbing or ice skating, but they offer plenty to keep you as busy as you like. I'll bet they'll have the time of their life and wouldn't be a bit surprised if they came back addicted to cruising
Have a wonderful time and once again, welcome aboard!