Not every Himalayan trek is washed out in the monsoon. Spiti, Lahaul and Kashmir stay relatively dry, while Sikkim and the southern slopes are wet and slippery.

Late December to January is the sweet spot for winter treks in Uttarakhand. Here is how snow, cold and trail conditions change from December to February.

Rhododendron season runs from late March into May. Here is where the blooms are usually strongest in Sikkim, the Singalila ridge and Uttarakhand.