My less polished attempt is below
I rather like the video below from a two seater going past the gun emplacements at Mont Chaberton (built by the Italians to keep the French out). It's a fun flight, but you really need two sets of hands to take video as you go past - so this one is from the RAFGSA site, not me.
The following talk by G Dale is very interesting. It talks of his experience baling out of his glider after a mid air collision in the Club Class Nationals. As it happens, I was a couple of km away, heading into the same (crowded) thermal at the time - I saw a glider spinning down in the middle of the gaggle, and shortly afterwards, a parachute opening. He told the story in the bar that night. It's worth any glider pilot watching and reflecting on.