Halfway up the slopes of Black Head you come across an ancient cattle highway. These 'green roads', as Tony Kirby from 'Heart of Burren Walks' explains, were used to drove cattle onto the high lands, across the slopes of the limestone pavement, where they would spend their winter, in an activity called 'reverse' transhumance that has been in existence for over 6,000 years. It is here, with unparalleled views across Galway Bay, the Maamturks of Connemara and the Aran Islands, that you follow in the footsteps of this ancient Irish tradition with the limestone reflecting silver brilliance in the midday sun of early autumn.