Visited 25.08.22
For some perverse reason I felt compelled to revisit Long Tom (Cairnryan) Standing Stone. My original route from Cairnryan was blocked by a no unauthorised entry sign, presumably for a Wind Farm Construction Site. Back to the drawing board or in this case OS Maps. Glen App Wind Farm is now operational and accessible on foot (or bike). I plotted a route through the wind farm leading to Turbine B10. From there I could see a route to Long Tom (Cairnryan) via forest rides and firebreaks. The conditions underfoot were rough and boggy with care required on some sections to avoid sinking, however I persisted to reach my goal. A standing stone in perfect isolation! A just reward for a difficult expedition. All too soon I had to retrace my sodden footsteps to Turbine B10 and dry roads.
My route to Long Tom (Cairnryan) is viewable on the following link: explore.osmaps.com/route/13702299/long-tom-milldown?lat=55.018030&lon=-5.023700&zoom=12.6373&overlays=&style=Leisure&type=2d
Parking is available at NX 07423 74657, W of the A77 opposite Glenapp Church, just N of Glenapp Schoolhouse. Walk S along the A77 for c. 200 yards to reach the Glen App Track, the start of the route.