off road where!!

hi all, recently modded a series 3 and looking for somewhere for a day out on sat 2nd aug does anyone know a place thats open and trailer friendly as my land rover will need to be towed. looking for quarrys, farm anything in the north west,wales etc etc any advice would be very greatful many

Go to Tom's farm in Cwmderw near Rhayader, 600 acres of hills, water, rocks, bog, and mud, massive.
Not exactly run like a proper off road site but it's unmissable.
Check this link for more details.
DirtBike Tracks Tom's Farm