I'm back home for Christmas so here's one from our boxing day walk. This is in Hawley Woods, where I spent a significant portion of my childhood playing and riding my bike. It's an MOD training ground with an RE training barracks in it, hence the RE survey mark.
Across the far side of the lake is the sailing club where I learned to sail and kayak, and there used to be a military boat training facility next to it but it's been dismantled now. It wasn't unusual when I was a kid to see a load of squaddies hiding in the bushes while their mates built a bridge over the lake. They do less of that nowadays though they still carry out exercises in other parts of the woods. Sandhurst Academy is not far away.
It's also used for filming. If anybody remembers the game show Run The Gauntlet from the 1980s, that was filmed here. Recently it was the location for Jurassic World.
ETA: Today we walked there but I spent pretty much the entire first sixteen years of my life riding my bike around those woods, so it counts, ok?