With no roads to speak of in the higher elevation areas, truly experiencing the Himalaya Mountains generally involves a multi-day trek. In this fantastic video, top contributor jeon.donghee used drone and ground camera footage along on one of the most challenging of these treks: the Three Passes Trek in Nepal. The 16 day hike covers 160 km (around 100 mi.) and crosses the Renjo La, Cho La and Kongma La mountain passes; as you'll see in the video, the trek affords clear views of Mt. Everest.