Forming part of the longer green loop, of just over 20 km, Highland Highway is not quite a highway, but utilizes some old forestry roads and it meanders it's way through some beautiful stands of jarrah and sheoak.
To access Highland Highway, park at the Ray's Trail car park on Harris River Road, just past the winery and ride out on Arklow Adaptive and Railway Rise Trails. Highland Highway will take you right through the heart of the Arklow Forest, before swinging around onto Around about Arklow and Pet Cemetery Trails and eventually ending up back at Arklow Adaptive and the car park.