The Purple Trail begins at Tržaška koča na Doliču and follows a wide mule track along the one-time border built by the Italian army after the First World War. The signposts indicate the beginning of the trail and the direction of Luknja and the Zadnjica valley. After a few minutes' walk, there is a junction where the trail branches off to the right on a very rigorous ascent of Triglav (2,864 m).
Alternative: If you wish to climb Triglav, turn right at the junction and walk up the mule track. The track leads to a spacious Karstic meadow. There is a junction at the top where a signpost guides you to the steep and rocky slope leading up to Triglavska škrbina and via the ridge to the peak. Descend on the other side by way of a narrow ridge across Mali Triglav and Triglavski dom na Kredarici (2,515 m), then continue past Dom Valentina Staniča (2,332 m) and Begunjski studenec stream. Go across Prag to the Vrata valley and Aljažev dom v Vratih (1,015 m). This route is very difficult but well protected with steel cables and pins.
Take the mule track from the junction below Tržaška koča na Doliču. Walk down the relatively level but winding path towards the Zadnjica valley. The path leads past the southern edge of the spacious Zelenica plateau. To the right is a view of the tattered northern rock face of Kanjavec. Bare rock is gradually replaced by dwarf pine and larch. The path encircles Skok and leads to the junction at Korita. 1h 15 min. Korita (trough) is a deep incision that descends into the Zadnjica valley on one side, and rises to the Luknja pass (1,758 m) on the other. Because Korita is impassable, the route follows the mule track which runs above it.
The climb up the steep slope should be attempted in stages as it covers an altitude difference of 250 m. The 1h 30 min climb eventually leads to the Luknja pass, from where there is a magnificent view of the Vrata valley below. This grassy pass is a good spot to stop and rest after the climb. Descend Luknja from the other side through a narrow and rocky valley, then across a scree slope lying below the Triglav North Face. The terrain below the scree slope levels out and gradually gives way to growth.
Follow the well-trodden path to the valley and pass the monument on the way to the bed of the Bistrica stream to the junction with the route from Triglav via Prag. The pure drinking water here offers good refreshment but the stream disappears during the hot Summer months. 1h10 min. Walk through the beech wood to the level floor of the Vrata valley and pass the monument to fallen Partisan soldiers, reaching Aljažev dom na Vratih in 20 minutes. The entire route takes 4h 15 minutes. Aljažev dom lies in the upper reaches of the Vrata glacial valley. It was named after Jakob Aljaž, the "Triglav priest", one of the most important figures in the history of mountaineering in Slovenia: He is merited with building the first timber hut here in 1896.