The vehicle entrance appears to be off the road at roughly NN 626 573, you can find it on Google Maps Street View, it is signposted Kilvrecht- car park, toilets and campsite. There is pedestrian entry, crossing footbridges in the forestry, roughly NN 614 564 and NN 616 569.

Thanks for all the on and off line recommendations. I will have a few more questions as I plot my way North and then East.

William :flag-bb:

What the Pieman said....we were there but the campsite wasn't.