The Milton Keynes Boundary Walk is approximately 65 miles long and follows the border of the MK Unitary Authority.
In 2012 a group a local geocachers divided the walk into sections and set a series of over 300 caches along the boundary.
More information about the walk and caches can be found at the website Caching the Boundary.
The Green section of the walk is approximately 5.5 miles long and starts at the Grand Union Canal and ends at the Newport Pagnel Road.
There are 21 caches in this section and some contain a number to help you find the green bonus cache which is hidden towards the middle of the green section of the walk.
Clockwise route - Don't cross the bridge, follow the hedgeline to the right of the bridge.
Anti-Clockwise route - Don't cross the bridge, follow the hedgeline to the tunnel & the next cache.