Hi - we are going to Universal on the 21st of this month and staying at HRH. We get in early that day (around 9:30 am), but I'm afraid my two 6 year olds will be too tired to really enjoy full days at US/IOA. I was wondering if Sea World would be a good option for the day we arrive? I was hoping we could walk around and then get to bed early(ish) that night. I'd appreciate any thoughts or feedback! Thanks so much!