The evening shamu show ( I think it's called Shamu rocks America) is different to the "regular" day show as it tends to be a little more "upbeat" and less a "set program". The fireworks are not in the same stadium as the Shamu show and is(was) held in the stadium used for the ski shows during the day overlooking BayLake. It's just a couple of minutes walk from Shamu Stadium and the firework show generally starts 15 minutes after the Shamu show finishes, in order to give the crowd time to get their seats, drinks and restroom stops.