John Hayes is a retired management consultant with degrees from Liverpool University and University College London. Immediately after finishing work in 2011 he embarked on an epic 5,000km trek across Europe, walking from Tarifa in Spain to Budapest. The veteran of numerous long treks in the Alps, Spain and the Himalayas, John has written extensively for walking and trekking magazines. John first visited the Karnischer Höhenweg in 2012 while on the Via-Alpina. He walked it again in 2015 and 2016.