I live in a village not too far from Dunstable and can recommend the following; you will however need a car to get to them:
Beacon View - Round in Circles GC87E9, Closest to Dunstable with some breathtaking views
A Clappers Caper GC87B9
A Clappers Caper Part 1 GC87B7
A Clappers Caper Part 2 GC87B8
All three are in the same area, also with lovely views.
Katherine's Cross GCB938
Masquerade GCBF82
These two are within a few hundred feet of each other.
Hope this help, good luck and good caching
HiPath