OK here are some more questions......

[crazyme5kids]

I have 2 day tickets to Universal/ IOA. When I initially purchased them in Dec., we were only staying on the property 1 night and going to the parks sun./mon. all day. Now that we are staying two nights, I was wondering what we can do on Sat. when we arrive. We will be arriving sometime mid to late afternoon, so I would hate to waste any of our tickets on just a few hours in the park. I'm sure we will hit the pool, but I was wondering if we can get some sort of pass to go see Earth, Wind and Fire. How about city walk? There are only just so many hours I can sit around at a pool, and besides I know the kids will be chomping at the bit to go do something. Any advice?

 

[h20jag]

I don't think you could get into Mardi Gras or Concert without using the one day tic.
I'd certainly use the hotel time for pools & exploring. Take the water taxi to CityWalk, you'll find plenty to do for a couple hours there.
Don't forget, you can tour HRH & use their pool too. Be warned though, kids may become more attached there and make it very hard to get 'em away!
You'll have a great time everywhere!
Jim