It's the segment of the Main Street Electrical Parade that follows Cinderella's Coach. The float in the middle between the canopies transports the Prince and the 2 StepSisters.
Spent EMH in Magic Kingdom on our last night at Disney...we were running to HM to ride it at midnight and I stopped for half a second to take this. I figured it would look terrible since I barely looked through the viewfinder but I was fairly pleased with the outcome. It's a little noisy but I left it that way...seemed to work with the shot