The race will start on the track on the lower slopes of Slievenamuck and will visit 8 summits along the skyline around Spelga reservoir. From Cock Mtn the run to the finish passes below the dam before a last short climb up to the car park. There are two mandatory road crossings but the rest of the course is off-road.
The Spelga Skyline is a tour of the peaks surrounding Spelga Reservoir in the Mournes. Maybe Ireland's toughest half marathon. Runners will visit Slievenamuck, Ott, Muck, Pigeon Rock, Moughanmore, Eagle, Rocky and Cock Mountains in order, with free route in between except for 2 mandatory road crossings.