Because you walked for over an hour to and from fireworks and got into bed at 1 AM..
And it's a hot day out.
You will not feel well at the end of the day.
The park was fun though. Bub went on the swing for the first time and he loved it. At first he was not having it but after a few back and forths he definitely liked the swing.
And he loved the splash park. When on his feet he would bounce around and laugh at the water.
Princess had lots of fun too. There's a small animal park and she got to feed some goats and other animals. We all got to see a daddy peacock protecting his young from some fearsome sheep.
Overall, fun day, even if I still feel like crap!