From the car park, walk down the access road through the outer bank of the fortified site. Bear left, then, as the road bends right, go through the two gates leading to a waymarked and fenced bridle path and follow this until you reach a road.

Go through the gate opposite and follow the track ahead. Pass a cottage (Shepherds Corner) and ascend the track. In 0.25 miles (400m), descend to Keeper's Cottage and a crossing of paths.

Keep straight on, heading uphill and between fields into a wooded area. At a crossing of bridle paths, turn left and descend a tree-lined path. Follow the path down to farm buildings and continue to a road.

Turn left, then right in 50yds (46m) down a metalled lane. Cross the River Avon and two further footbridges, then follow the metalled path and drive to a road. Turn left for The Wheatsheaf Inn; otherwise, turn right and in 50yds (46m) turn left up a lane.

Just before cottages and barns, turn left through a kissing gate and walk down the left-hand field-edge. Go through another kissing gate, then ahead and over a stile. Walk on beside a hedge. At the edge of a field, by a permissive footpath, maintain direction across a field, cross a track and go straight on. Continue on this line, through a hedge gap, to meet the road on your left, by a footpath sign.

Cross the road diagonally and take the path down a wooded track. Pass to the left of 'The Bays' to a stile and turn right between the stream and fence. Cross double stiles in the corner and turn sharp left over a stile and turn right beside the stream to a small gate and a metalled drive. Turn left and skirt Home Farm and Little Durnford Manor to an electronic gate (green button on right) and road.

Turn right and follow the road for 0.75 miles (1.2km) to a staggered crossroads. Keep ahead towards Salisbury, crossing the stile on your left in 100yds (91m). Bear half left across the field, then skirt the churchyard to reach a stile, a metalled path and a further stile. Head down the next field, cross a stile and keep right of a barn, then cross a stile on a fenced track.

Meet a track and turn left uphill towards the tree-covered ramparts. Keep left at the junction of paths by a gate, then fork right through a gate and climb on to the outer rampart. Go through a gate, turn right and follow the path to a gate and Old Sarum's access road. Turn left back to the car park.