Go to the far end of the car park, passing the toilet block to reach a gate. Continue along the Ridgeway to the eastern entrance to Barbury Castle and enter the hill-fort. Walk around the rampart or straight across the centre to leave via the western entrance. Drop down the hillside to a gate. Turn right down a lane and in 50yds (46m) turn right at the crossing of ways.

Follow the waymarked byway and at a T-junction turn left for 50yds (46m) along the metalled lane, then bear right at the cycle way sign (No. 45). Continue with trees on the left and then between fields to a waymarker for Barbury Castle.

Turn right and follow the field-edge towards Barbury Shooting School. Pass a dilapidated barn and on reaching a waymarker on the left, at the end of a line of trees, turn left. Swing right after a few paces towards a gap in the line of trees on the brow of the hill, pass a Millennium Trail sign and continue to an angled junction.

Turn sharp right, signposted ‘Millennium Trail’ and head for a gate. Steeply ascend Burderop Down to a stile and gate and continue to climb along the left-hand edge of a large field, past the memorial stone to Richard Jefferies and Alfred Williams. Eventually you reach a gate. Turn left up the lane and soon turn right back into the car park.