Thank you very much, this sort of seals it.
"The way through Killamarsh is not obvious so keep a very close look out for the Cuckoo Way and Killamarsh Greenway signs. If you do get lost, just go downhill to the main road (Sheffield Road) and turn right. As the road starts to rise, you will see a Cuckoo Way sign pointing along a path to the left.
A short distance after crossing Rotherham Road, you will come to the Norwood flight of locks and eventually to the sealed up western portal of the Norwood Tunnel. Just before the tunnel, you will need to take the path to the left, up the hill. All but the most hardened mountain bike riders will be pushing their bikes here.
Go under the M1. From here it is downhill all the way to the River Trent!
Follow the path that goes slightly to the left to the line of the hedge. Keep going until you reach Kiveton Waters Fishery. Cross Hard Lane, go straight across the field and you get to the eastern portal of the Norwood Tunnel. From here you just follow the towpath for the remaining 32 miles to West Stockwith on the Trent."
The bolded bit is the relevant bit, looks like I maybe getting off & pushing
