We've been there on the 4th before, it's crowded but not unbearably so...all APs except the Premium are blocked. They do run the patriotic fireworks all that week, so if you don't want to be in the park, you do have an opportunity to see the special show on other nights. It's a great show, we're going to be in Newport Beach on the 4th this year, we have debated going over to watch the fireworks from DTD too.