Distances are approximate. Walk is relatively flat, bar two hills, one on the outward and and one on the backward leg (both up and down). There is also one down on the outward leg and up on the backward leg, to get from Aust services to the Severn foreshore.
A Google Map is here...
Outward Leg (About 5.5 Miles)-----------------------------
Start at Aust Services. Walk to the viewpoint over the bridge.Turn left and walk along the top of the cliff and then downto the foreshore towards the power station in the distance.
After about one mile you come to an inlet (Whale Wharf). Turnonto the road and go inland. At village of Littleton-upon-Severn turn right and continue in direction of pub (very good pub).
Just before pub turn down what looks like a drive on the leftand continue to end. Style on left takes you across a field towards the hill in front.
Cross over the small road and into the next field and climb up the hill. Keeping the hedge to your right. - This hill can be very slippery when wet. If it is soggy underfoot we can take a detour (but makes the walk longer). If so we will walk back the same way, avoiding Oldbury.
At top of hill bend round the field to your right. Then down the hill into a small valley and up again. Now cross field in a left ward diagonal to a gate at the end, and then follow the track along.
Eventually you meet a road continue on this to a T-junction.Cross over into the next field and keep going till the golf course, go around the golf course keeping it on your left and then descend into Thornbury.
Mundy playing fields (paddling pool, swings and football pitch)is in front. Head for this. This is a good picnic spot. Behind the playing fields are shops and pubs if you fancy something more.
Backward Leg (About 7 Miles)----------------------------
Exit Mundy playing fields and back and turn left along high street.Pass the pump and turn left down to the church/castle.
At church there is the entrance to the castle on the left, but before this is a small track on the left. Go down this. The track forks with the left fork going up a short incline. Take this left fork. Keep going.
You reach a road cross, cross this and take the footpath straight ahead across the next field. This takes you through a farm and then you meet another road.
Turn left and follow the road until it bends left. At the left bend take the bridle way in front of you. Eventually there is a bridle way to the left which you should follow up the hill to Oldbury Church. Now follow the lane north and down the hill into Oldbury. Again nice pub here.
Before the pub, by the stables turn left. Get to the foreshore and turn left and carry on until you reach the hill back up to Aust services.
At Aust there is a pub on the other side from the services in the village. Also for those wanting a bit more explore you can see the sight of the old ferry (famous photo of Bob Dylan was taken here)at the other end of the village (bit of a hike up a hill though).