I’ll try.
Imagine you are going down the steep tarmac road to Dorking from the Ranmore Church area.
There is a “flint” wall either side of the road just past the point where, if you look to your right, you can suddenly see Westcott and Leith hill beyond it.
Shortly after, there is a five-bar gate in the wall on your left.
Opposite this, on the far side of the road, the wall has stopped and there is a gap where you can get through into some woodland. Carry on and then right, and you will join the bridleway that has run under the road bridge from the gate on the (now) other side of the tarmac road.
However, if you advance about four metres and look left, there is a trail head that goes down the steep slope, splitting left and right.
I can’t remember the name of the trail that goes left, but the one that goes right is “Hot Burrito” apparently – newly created by Simon from Nirvana. Even at the first run-in it’s a challenge if your (my) idea of “getting air” is hopping over a twig
The riders I watched attacking the earth-raised tree-trunk (about a metre and a half high) seemed to just float over it.
I’m going to have a look, but I don’t expect I’ll be cleaning it anytime soon…