This is a moderate walk with a long steep climb. There are no toilets or pubs, except in Usk itself.

Leave the town square by the south-east corner (i.e. the same side of the square as the Castle Inn) and proceed along Four Ash Street. Pass the former Greyhound Inn (now a private house) and continue on Chepstow Road. Turn right at the Olway Inn Hotel (formerly Casey's Court) and go up the steep hill.

Continue along the lane, crossing above the dual carriageway. At the crossroads (where the Flood Route is signposted in two directions) go straight up the narrow lane. Continue uphill, ignoring after about 120 metres the parallel track on the right which leads to a house.

At "Graig-Yr-Ieir" house (the white house at the end of the lane), take the narrow, muddy and stony track up the hill, through Mardy Hill Wood. At the top follow the track with a field to the left and a hedge to the right. When visibility is good, there are splendid views from here across to the hills surrounding Abergavenny. Shortly after the next house on the left, follow the track round to the right. Pass the entrance to the Springdale Farm Nature Reserve (Gwent Wildlife Trust).

St Llywel's Church, Llanllowell

After 7 minutes, in the hamlet of Coed Cwnwr, take the lane to the right (where there is a postbox.) Follow this down the beautiful valley called Llewelyn's Dingle. Turn right at the T-junction and go under the dual carriageway. Opposite St Llywel's Church in the hamlet of Llanllowell, take the lane on the right (signposted Usk Flood Route).

Follow this for 1 mile and turn left at the crossroads (signposted Usk Flood Route).

Follow this to the T-junction by the Olway Inn Hotel and turn left. Follow the road back to the town square.