Watch Annapurna Trekking im Schatten der Eisriesen (2009) : Full Movie Online Free The classic circumnavigation over the Thorong La Pass. The circumnavigation of the Annapurna massif over the 5,416 meter high Thorong Pass is one of the most popular trekking tours in Nepal. The film tells the story of a trekking group who hiked around the Annapurna massif on their vacation. The adventure lasted 17 days.