Overnight park near start of walk. Cycled 9km up Glen Ey to ruin of Altanour Lodge. Up and around. Dry and intermittently good views but low cloud hanging about. Ground dry or crossing to BIM would be boggy! Up over BIM and countoured round to find good path up An Socach. Glad to see bike - a tired Alfie. Quick stop at flying stag, then to North Berwick to get Alfie's tooth sorted.