The trail starts from Refugiul Diana mountain hut (1510 m) (connection with Trails 6 and 10). From Poiana Curmatura Prapastiilor meadow, the trail goes south below Turnurile Diana wall (Muchia Diana edge or Muchia Padina Popii edge), through the forest, crosses a few areas with fallen trees and after a 400 meter ascent (100 meters altitude difference), it goes among dwarf pines and reaches Padina Popii stream. Continue climbing among the dwarf pines and in 40 meters get to a panoramic viewpoint below the first cable of the route (before this point, there are two access ways, both marked). Walk past the sign panel and climb 10 to 12 meters on the cable-equipped trail, cross to the right 3-4 meters, descend on the second cable 4-5 meters and then climb on the contour line on the second rocky crest covered with dwarf pines and pine trees. After 40-50 meters get to the scree which you walk up on, along the switchbacks, near the wall to the left. After about an hour and a half climb, you reach Strunga Izvorului v-shaped saddle (1890 m) above Muchia Diana edge. There is an unmarked trail on the north side that makes the connection with Trail 10 above La Gavan spring. Continue to the southeast, on the mathematical ridge covered with dwarf pines, which ends in ridge trail 20 on Varful Padina Popii peak (2018 m).