Jessica:
Thanks for coming to the Mom's Panel!
Your hunch is correct. Disney's
Electrical Water Pageant that performs along the shores of the Magic Kingdom's resorts on Bay Lake and Seven Seas Lagoon does so nightly. Beginning at 9 p.m., you can catch it from the marinas of the Polynesian, the Grand Floridian, Wilderness Lodge, Fort Wilderness, and the Contemporary. It eases from one resort's shoreline to the next on 15-minute intervals, typically.
It's the highlight of my husband's trip and even on the nights we don't make it to the water to see it, we can hear the music from our resort. We consider it a "must-do," so add it to your list and know that you can fit it in any evening of your vacation.
Wishing y'all a magical vacation!
Whitney