Day 4 - Blackwaterfoot to PirnmillWalk distance: 13 milesWalk time: ~8.5 hoursGPX fileKML view on Google Maps Setting off towards King's CaveA night's rest had done a hell of a lot to restore my spirits, but as we an excellent breakfast in Blackwaterfoot, and contemplated the OS map in front of us, it was hard not to be a little worried. We had approximately 11 miles to go (an underestimate, as it turned out), and about half of that was by road.