An amble from Wimpole Hall to Kingston and back via Eversdon Wood and the folly. Car parking at Wimpole is free if you're a member, otherwise it's pay and display. They also have a café offering tea and snacks which makes a nice end to the walk.

Wimpole Hall viewed from the folly hill
We did this route for the first time on 24/02/08 and Paul wrote it up in his blog here.
Here's the route on Google Maps1 and here's the GPX file (GPS Exchange Format, 3KB) for the route if you want to put it in your GPS.