Two lifelong friends and fathers from County Armagh in Northern Ireland have reached the halfway point of their extraordinary 1,000km+ charity walk from Essex to Armagh. Having left Radwinter in Essex on July 4 they reached the important milestone at the Ribblehead Viaduct landmark in the north Yorkshire Dales. The next stop will see them crossing into Scotland. Walking unassisted across public footpaths and rights of way with backpacks and tent…