This mileage includes the 2 mile from Swaffham to the path
As you approach Castle Acre from the south, look out for the amazing ruins of Castle Acre Priory which you’ll see from the road. You might like to stop and visit if you have time, or wander around the castle ruins which are on the right hand side as you walk up the main street towards the Bailey Gate.
This day is the hilliest part of the walk (!), it does involve a little bit more road walking from Castle Acre, but then you're on to quiet tracks all the way to Gt Massingham.