The government of Nepal declared some trekking destinations as restricted areas until 1991 for the protection of the wilderness and countless natural heritages of the country. Even today, these areas are strictly controlled. Foreign travelers need a licensed liaison officer and a special permit to enter these protected areas.
Most of the treks in the restricted areas are more than two weeks such as Tsum Valley Trek (15 days), Nar Phu Valley Trek (23 days), Upper Mustang Trek (15 days), Manaslu Trek (17 days), and Dolpo Trek (24 days.
Pick up the trek from the list below and get ready to explore the enormously natural and hidden valleys of Nepal.