Wow, planning a trip to Universal is so much fun. You got lot of tipps already. You will love Express Pass, not waiting in line is perfect and the Rojal Pacific is a beautiful resort. I love to do all the Water rides at universal, especially Dodley Ripsaw Falls and the Jurassic Park ride, but I hate walking around in wet clothes.So we always take some shorts and tank tops or a dress with us in a bag , something that is light and does not need too much space. Before the rides I change clothes, put my bag in a locker, do all water rides and then change the wet things at the nearest bathroom.Everything wet goes in a ziplog bag and that's it. We are dry again. (Don't forget to bring dry underwear too, you will get soaked
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Also love HP and the food at Simpson Food Court, also the Potter Restaurants. I would try them both. Have fun.

Also love HP and the food at Simpson Food Court, also the Potter Restaurants. I would try them both. Have fun.