Start your walk around Kensworth Chalk Pit from N51 52.118 W000 30.447 OR from Church End somewhere. Hopefully you will have already found your first cache of this mini-series!
This cache is placed very near the boundary footpath of Kensworth Chalk Pit which is a Site of Special Scientific Interest (SSSI).
According to the Natural England website:
“This site provides the best Chalk Rock exposure in central England, a distinct band which forms a marker horizon in the late Cretaceous Period. The top surface of the Chalk Rock is extremely fossiliferous and has yielded many well preserved and rare specimens including ammonites. The large quarry exposes much of the Turonian stage and the base of the overlying Coniacian stage. The extent of the exposure here makes this an unrivalled locality for stratigraphic studies in the Upper Cretaceous.”
The site is still active, so when you’re up there, look out for big diggers and earth movers.
Follow the footpath until you approach GZ. Turn off the boundary footpath onto another path towards the road, and left again into the trees to GZ. Co-ordinates may be a little out due to tree-cover.
You are looking for a 480ml Clip-Lock Box. Be careful of the barbed wire fence when you retrieve.