I'm starting to learn something about these Northumberland walks. When the guide says it's a moderate 4 and a bit mile walk, you might just assume that's a healthy stroll along a riverside path. What it doesn't tell you, is that the majority of that walk might be through about 2 miles of shoulder high ferns on the teetering edge of a hill. Steven's internal health and safety alarm was going mental ("they really should have handrails").
It was all worth it to sit and have a packed lunch in the most secluded riverside spot ever. I even went for a paddle.
If you're interested in doing this walk, the guide can be found here. Enjoy!