@James_R - that was me! The restricted access is through Eythrope Park, which is the other side of the road to Waddesdon. But I haven't been through Waddesdon for a while, I hope the same thing hasn't happened there - I guess we will find out, unless anyone knows...?
JamesT
Not sure of the current situation James, but someone brought this to my attention when I planned a route through Waddesdon estate:
http://www.amershamrcc.com/eythrope-park-restricted-access-1st-june-2020/