Hi there! I highly recommend checking out the official frozen summer fun thread started by lovethattink. I found it extremely helpful when I was planning. Unfortunately I can't link it now because I'm on my phone.
I was there for one day on Saturday August 2 (an EMH day).
Here's the schedule we followed:
10:00 AM: in park, went straight to our procession viewing spot. We sat right where the procession comes out, to the left of the crossroads hub and right behind guest services. This worked out perfectly because we sat right on the curb in the shade the whole time.
While my dad sat in our spot I walked back to Streets of America- San Francisco to pick up our singalong tickets for the 1:30 show.
11:00 AM: The Frozen Processional.
Thanks to Lovethattink's official frozen summer thread, I learned that we could follow immediately behind the procession as it passed to get a good viewing spot for the stage show. This worked out perfectly and it felt kind of like we were in the parade.
11:30 AM: Wandering Oaken's Trading Post - Funland.
No wait to get inside, and about a 20 minute wait to play in the snow. We had time to spare before singalong so we went to the merchandise gift shop area as well, and there was no line at all for check out.
12:50 PM: Frozen Singalong return time
12:50 was the earliest time listed on our tickets that we could return, but we found that there was already a huge line by the time we got there at 12:50, and everyone in line was for our 1:30 show.
8:30 PM: Frozen Fireworks spot
We found a spot for the fireworks relatively close to the stage, right in front of a popcorn cart. This worked out well for us because the popcorn cart area was taped off and no one could stand there, so we didn't have anyone pushing against us or any crowding from behind.
We enjoyed the live music from the concert and it was nice to sit and relax after a busy day. Once the fireworks and stage show began we had an amazing view. The fireworks were enormous and felt like they were right in our faces, and we could also see the stage show pretty well on our tippy toes (lots of kids on shoulders and I am short, haha!)
I hope this helps you!! You will have so much fun - let me know if you have any other questions.