With the 1km done, I remember roughly the sign said 21km total for the hike. We proceeded up numerous mountains, across waterfalls, wood planks, rivers, mud, lots more mud, more water, cliff side drop offs, and sheer rock face. We took 10 minute breaks a few times, but overall snacked in route. 3-4 kilometers into the hike gets interesting again with lots of terrain changes. This was up there with the 1st kilometer in my book. Worn out and sore, but at 7.5 miles later, yes that 12 kilometers, we reached Trolltunga. We arrived just before 12 meaning it took just over 4 hours to get to the top. The view was incredible to say the least. The line was about 20 people back when we arrived. We agreed to swap out with others in line to take photos. If not we would not have been able to take a photo together. We spent just at an hour here with photos, lunch and a pee stop.