Trekking in Nepal Trekking in Nepal requires permits, and their fees are decided based on the region and trekking trail you wish to undertake. Nepal's trekking regions are categorized as restricted and non-restricted, each with different permit regulations. Restricted area trekking in Nepal includes remote and culturally significant regions with limited entry in an attempt to preserve their natural and cultural heritage. They are specially protected regions and are governed by special permits and are typically strictly controlled as they are bordered to other neighboring countries. Most significant restricted treks in Nepal include Upper Mustang, Upper Dolpo, Manaslu Circuit, Nar Phu Valley, Tsum Valley, and Kanchenjunga.