The day I attended, I was told the quarry was privately owned by a local land owner who rented it out. How often and to whom, I dont know.
The next Suffolk 4x4 Club `public driving day` is planned for 24th Jan at Badwell Ash. The one after that is scheduled for 21st March, venue to be confirmed.
Other venues used by them are;
Three Holes, Cambs
Blackborough End, Norfolk
Dersingham, Norfolk
Belchamp Otten,Suffolk
Stuston, Suffolk
Woolpit, Suffolk