Chadar Trek (Zanskar River)

The Chadar Trek is a specialized winter expedition on the frozen Zanskar River in Ladakh. Historically known as the 'Chadar' (blanket of ice), this route served as the primary winter link between the Zanskar Valley and Leh when high mountain passes were impassable due to snow. This trek features non-technical terrain, but an extreme environmental load. The route involves traversing the ice surface within deep limestone canyons. With ambient temperatures frequently dropping below -30°C, the trek requires specialized cold-weather management and an understanding of shifting ice dynamics.

The Chomolhari Trek is a 7–9 day high-altitude route through the Jigme Dorji National Park, Bhutan. The trail traverses from Drugyel Dzong toward the base of Mount Jomolhari (7,326m), a sacred peak for the Bhutanese people. The route reaches high points at the Nyele La pass (4,700m) and potentially the Bongte La (~4,890m) depending on the variant. It is characterized by sustained exposure above 3,500 meters, passing through sub-alpine forests and high glacial basins where seasonal yak herders maintain their summer camps.