So, ok, they're rehearsing for the big day every Saturday. Marching practice? Check. Aircraft fly-bys? Check. Performance rehearsals? Check.
But what I don't get is why do you need to rehearse fireworks? Isn't that like spoiling the big show for everyone? If it's about safety, couldn't they just use some sort of simulacrum?
Not that I'm complaining because I get to see a free show every week but rehearsing fireworks just puzzles me.