We will be trying Universal for the first time (kids ages 5,7,9.11). Staying on site for the extra hour in the morning. My question is, if I purchase a one day pass with park to park, then we decide we want to go back the next day does Universal do an upgrade deal (multi day deal?) like Disney does when you add days, or do we get stuck paying for the two full price days? I will be kicking myself if I need to pay the extra when I could just buy it now.
I'm debating if we can do it all in one day, so not sure I want to spend the $ if we don't need it for the second day.
Thanks!

I'm debating if we can do it all in one day, so not sure I want to spend the $ if we don't need it for the second day.
Thanks!