First of all, the cabins:
There is wi-fi which is great so you can still check your Facebook on the cruise. Although it costs $24.99 just for 60 minutes of use and that goes by extremely quick and our cruise only lasted 5 days. Make sure not to have your phone on once you have started moving because you're going to be charged international rates which are outrageous. So in the cabins there is not a lot to do. There is a TV and thats about it.
There is a club for teens ages 15-17 years old that usually opens at about 9pm. If you plan on going in this club anytime during the cruise, make sure you attend the youth registration on the first day to get your pass. Now, the club is pretty small. there is a large curved couch and a few tables and chairs to lounge on and a bar area and a dance floor. Thats it. They play the same songs over and over. But on a couple of the days they have things like poker tournaments, tshirt designing, virgin drinks, and video games. But they are kind of lame and almost everyone just sits and talks. Although the club wasnt that great, it was probably my favorite place because it was somewhere to go find people my age.
Theres a few places you can eat. Youre automatically signed up to a table in one of the main dining rooms at either 6 or 8:15. Ours was in Jubilee at 8:15 and it was a pain in the butt. Not only were we STARVING by the time we were supposed to go eat, but it took another 45 minutes to actually get the food. It tasted great though and you can eat all you want, but i personally didnt enjoy it. And plus, you have to sit at a table with a bunch of strangers the entire week. But If you dont want to eat there the Lido deck is buffet for breakfast, lunch, and dinner. Unfortunately it never seems to be open at the right times. breakfast is too late, lunch is too late, and dinner is too early and there isnt a lot of choices. Except there is 24 ice cream and frozen yogurt bar and pizza is available 24 hours also. And the grill by the pool has the best food in my opinion.
Fourth: Everything Else
Being under 18, there isnt much to do, no casino or bars and half the shows are for adults only so the only thing left is go to the tiny arcade or the teen club. Well they also have a pool and waterslide, but they are both so crowded its hardly worth it. They are usually overrun with small children. You cant rent out pingpong paddles if your under 18 either. But you can play mini golf if it isnt too crowded, although its still so windy that its nearly pointless.
All in all, Carnival is ok but i dont want to go on that particular ship again.