Last time I was there a kid on his own going the wrong way round on a bike with stabilisers.
I had to brake pretty sharpish as I didn’t see him until very late as he was hidden from view by the previous berm. As I was stopped trying to convince him to go back to his parents, I got expletives hurled at me by a fellow mountain biker for being stopped on the trail!!!!
Thing is, _SHE_ did see a 6’2″ bloke wearing fluorescent jacket on the blind corner… What she didn’t see until she’d actually passed me, was a 4 y/o kid stopped in the trail, at which time I vaguely heard what was either a muffled apology, or more cursing (though this time at the child).
TBH It’s par for the course. First time I ever went to the Pines, I admit I got told politely I was going the wrong way. I apologised, explained I was lost (the signs are much better now though), and the guys were very helpful. With that approach everyone wins.
BTW If you are in Notts, and don’t want the traffic, the bridleways that make up the Tonya’s challenge route are good. Much better climbs, and faster descents :). I ride them regularly, and it’s rare you even see another MTB, let alone a walker.