The Nepal Manaslu trekking tour opened in the early 90s, and it is now a controlled trekking route. Organized trekking groups can enter this region and rove around its circuit. The trek is famous for its spectacular view of the Tibetan and Nepali border and the conservation area, which comprises a unique environment that is phenomenally rich in biodiversity.
https://www.travellersquest.com/blog/nepal-trek/
