I am not sure about where to stay at Copper Creek to see fireworks from your room, but we found one of the best location to see the magic kingdom fireworks from the Wilderness Lodge was at the end of the ferry dock. There are cushioned chairs and a couch under an awning and it had speakers that had the music. We went out maybe 1/2 hour before and turned the two chairs towards where the ferry pulls up and we had pretty good views (there were still trees in the way). We also watched them from the chairs between Geyser Point and Bay Lake but that seems to be a very popular place to watch them so it was full a lot of the time.