Where the butterfly NNR trail divides is point 3 on our walk. There is a metal kissing gate, and on its left are deformed trees and a wooden post on which we can see the butterfly and yellow footpath waymarks showing that there are rights of way going off in two directions from here. This is useful to pinpoint your position on a map.
We want to fork left.
We are into a paddock with horses and cows.
There is a substantial metallic-looking animal shelter ahead and to the right.
We aim for the metal kissing gate ahead and to the left.
We go through the metal kissing gate and keep in the same direction, diagonally across the field
making for a waymark post.
We go through a gap in the hedge over some wooden boards
with a metal netting cover
and on and through a metal kissing gate.
Here we angle right.
A bit behind us and to our right are some lovely silver poplars shimmering in the light.
There is an unusual square area fenced off to our left.
There looks to be a scarecrow alongside the fence and then a bank. Behind the bank we can see the roof of what is a duck house. We aim for a waymark post to the right of the fence and a metal kissing gate beyond the post.
Through the metal kissing gate we bear left.
On our right there is buckthorn, sloes only above our heads. I wonder if someone has been before us harvesting all within reach.
We come out on to a road. This
is Pembridge Lane. 
By coming out on to Pembridge Lane,
we have reached point 4 of our walk, TL 332070