Hyatt usually puts on a fairly good fireworks display.

If I were there for the 4th, I think that I'd plunk my fat bottom on a seat at the Bugaloe and remain there, with miami vices or pina coladas from happy hour til 10 pm enjoying the scenery, music and fireworks.
Undoubtedly, i would not be driving, nor walking very well.

If you are planning on watching the fireworks, stay safe and enjoy.