Hadleigh parkrun is free but you must register in advance on the parkrun website. An undulating one lap course through the beautiful Hadleigh park with stunning views across the Thames Estuary. We follow the trail path downhill on the 2012 Olympic mountain bike trail, before turning right through a narrow green gate. The trail path continues and at the 2.5K mark, the path turns downhill and back in the direction from which we came. The route continues along the path for a further 1K before taking a sharp left turn through a gate and into the field, where we run up the hill across the grass. As we go through the gate out of the field, we turn right, re-joining the trail path and back towards the start.