Barras 10 Miles
This is a very good run and there is even a cut off point partway along the outward Barras road that can be used to make it into a 6 miles route. Be warned though that this route is hillier than you would expect (isn't every route in and around Stonehaven like that?) and is quite exposed as it runs parallel to the sea so best to make alternative arrangements if it is blustery and/or wet!