I have 2 question 1) is it going to be open on July 4th 2) my birthday is on July 4th can I bring 2 balloons?

It should be open on the 4th. But the best thing to do is go on the website, it will tell you. The balloon thing idk. You could always call to check.

I've seen balloons there. Just don't lose them. There's a helium shortage, so consider air filled balloons on sticks instead of weighted strings.