Here's a pic from the last night of the British Fireworks Championships on the 24th Spetember in Southport.
Obviously no fireworks, but it was a very still night. The water was very calm, and after waiting for the water of the marina to calm a bit after the safety boats had past, I got this. I think it was worth the wait. It had been even better earlier in the evening, but you can only wait so long before the people you came with leave without you.