45 miles of footpath.
Luckily you don't have to use it all at once!
We haven't yet figured out precisely how many separate routes there are, but what we do know is there's something for everyone. The rings themselves are great challenges for all abilities, or you can make your own route to suit you.
THE OUTER RING
35 km (20 mi) 9 hrs
THE MIDDLE RING
16 km (10 mi) 4.5 hrs
Part city, part countryside, this route is great for history, taking you past the oldest church in England, St. Martin's.
Less of a challenge than the Outer Ring, but still quite invigorating.
THE INNER RING
3.5 km (2 mi) 45 mins
Here they are...