Ngaherenga Camp to Mt. Pureora, Native bush and logging history (1-3 hours) (grade 2) Mt. Pureora to Piropiro Camp, fly over subalpine forest bridges (4-6 hours) (grade 3) Piropiro Campsite to Ongarua, Highest hanging bridge (4-6 hours) (grade 3) Fork the main Track to Black Fern Road (1-2 hours) (grade 2)