Leave the M4 at J21 (signed M48 Chepstow), this takes you to the old Severn Toll Bridge (£6.20).
Exit at J2 (Chepstow) as soon as you've crossed the Bridge and take the third exit (Chepstow) from the roundabout.
Cross the second roundabout onto the A466 (Tintern/Monmouth), cross the third roundabout (Chepstow Racecourse is on your right) and continue (1 mile) to St.Arvans.
You will see the Piercefield Restaurant on your left and the Garage on your right.
There is a right hand bend (25 yards) in the road and Parkfield is found on the right as the bend unfolds.
Leave the M5 at J8 (signed M50 Ross-on-Wye).
When the M50 ends, continue on the A40 until you reach Monmouth and turn left at the traffic lights (Tintern/Chepstow) onto the A466.
After passing Tintern Abbey (on the left) continue (2.5 miles) to St.Arvans.
There is a left hand bend immediately after entering the 30mph zone; Parkfield is on your left close to the bend and immediately after the Village Shop.