Fulbeck (Lincolnshire) is 8 miles east of Newark. About 7 miles south east of Newark-on-Trent just off the A17 between Newark and Sleaford, turn off south along the un-numbered lane towards Stragglethorpe. Carry on until you go past the Fulbeck sign to your left and turn into the MOD property gate 30 metres on your right.
From the south and the A1 turn right after the A1 B1174 roundabout and service area. Signposted Marston, follow the road through Marston and Brandon towards Stragglethorpe. Just before Stragglethorpe is a clump of trees on the left and an entrance to MOD property. Turn up this track.
In each case follow the track to the T -Junction and then round to your left following the old perimeter road to the circuit.