Video credit to Trophy Germany:
Trail 1 - Shortly after checkpoint 4, head north through the trees to the cave.
Trail 2 - Head left immediately from the start and jump over a gap to reach the rest spot.
Trail 3 - After the steep downhill with scattered rocks ending in light forest, head left down the trail.
Trail 4 - Before the campsite at the end, stay to the far left and go around the back of the campsite, following the path to the right.
You will get this too, if you haven't already: