Buy the OS Route Map and instructions for this route

This route traces a tough path over the moors that line the southern and western flanks of the river Swale. The route crosses the Swale near Keld — where the river is at its most spectacular — and returns via some old mining tracks that hug the eastern and northern banks. The outward leg is a three-up, three-down type of arrangement, with some very stiff but rideable climbs and some top-notch descents.
The return looks easier on paper, but it climbs and rises a lot more than you’d think, and by this stage your legs will really be feeling it. The Pennine Way section is exquisite: fine views and great riding all the way, and even the long tarmac section is unlikely to curb your enthusiasm too much; especially the descent into Gunnerside. How high can you get that speedo?
The final climb may be one hill too many, but having got this far you can’t quit now. The views from the top are wonderful, and the descent has plenty to offer as well.