Do you think you could have got a bike up the path behind Heriot?
Not the way I went - steep, fences, burns and clambering through fairly dense wooded areas.
There might be more sensible routes, though - I was relying on brute force and ignorance.
EDIT: Fairly sure you could cycle it using these:
https://www.openstreetmap.org/way/373859963#map=16/55.7630/-2.9499&layers=G
https://www.openstreetmap.org/way/373859892#map=15/55.7546/-2.9688&layers=G