**NOTE: It looks like the image map html code is no longer supported by Groundspeak, and so the puzzle below is broken. The location you need can be found here. This cache will be removed and archived in due course.
Get the kids to help you with the puzzle. But beware - the cache is deliberately hidden as far as possible from any roads, so a significant walk over some of Northamptonshire's notoriously poorly marked footpaths will be required. You should allow about an hour - possibly more. But this is a wonderfully peaceful area - take time to enjoy the scenery and wildlife en route. And bring some large swaps - it's a large cache!
(* he was on holiday, of course!)
Many thanks to The Allotment Gardener for providing the bumper sized cache container!