Exploring the Himalayas may be done in a week to 10 days, however since there is so much to explore, do not complain if your find yourself wanting more at the end of a week. Decide your travel itinerary well in advance and opt for a travel package to limit your expenses. October is a good time to get flight bookings to visit Himachal, since the cold season will not have begun in earnest and the weather will be chilly and pleasant. Popular destinations in Himachal include Shimla and Manali. For an offbeat experience you can even opt to travel along the Parvati Valley all the Way to Spiti valley.