K2: Siren of the Himalayas K2: Siren of the Himalayas K2: Siren of the Himalayas is a 2012 American documentary film directed by Dave Ohlson. The film follows a group of climbers during their 2009 attempt to climb K2, chronicling the climbers' attempt to surmount the peak on the 100-year anniversary of the Duke of Abruzzi’s landmark K2 expedition in 1909. The film also delves into the history and geography of the Karakoram mountain region. The film was shot in Pakistan in the summer of 2009. Director Dave Ohlson made the trek to climb K2 with elite alpinists Gerlinde Kaltenbrunner (2012 National Geographic Explorer of
Baltistan of mountains in the world and the biggest glaciers outside the polar regions. The Himalayas advance into this region from India, Tibet and Nepal, and north of them are the Karakoram range. Both ranges run northwest, separated by the Indus River. Along the Indus and its tributaries are many valleys. Glaciers include Baltoro Glacier, Biafo Glacier, Siachen Glacier, Trango Glacier and Godwin-Austen Glacier. Baltistan is home to more than 20 peaks of over , including K2 (the second-highest mountain on earth. Other well-known peaks include Masherbrum (also known as K1), Broad Peak, Hidden Peak, Gasherbrum II, Gasherbrum IV and Chogolisa