The cache is located in a wood which sounds like it's named after someone who lacked courage. The wood is also by a Roman road.
You'll need to drive along this Roman Road and look out for a signpost marking a Bridle-path to the right (if you're heading North-west). You can park by this sign.
This Bridle path leads right past the cache, which is hidden at ground level. When you've finished with the cache, there is plenty of pleasant Northamptonshire countryside and picturesque villages to explore. There is also Althorpe House, the ancestral home of Princess Diana, which is only about a mile away. (But I think it's only open during July/August).
Also seek out Accessible by Horse II ! not very far away!