It's a bit hard to find. From Borovec, drive northwest maybe 700m or so. There's a place to park on the right side of the road, and an overgrown dirt road leading up the mountain on the left side. If you follow that road uphill, eventually you'll come to a sign that points you to turn left, on what looks like a disused forestry road. That turns into the path, and there's an information sign at that point.