Makalu Arun Social Trek (MAST), is a government egistered and licensed, non-profit distributing trekking agency. Established by the SESF Foundation in Khandbari in 2010, MAST is dedicated to organizing Makalu trekking for social impact. Our mission is to transform traditional commercial tourism into community-friendly social trekking.

Makalu Arun Social Trek (MAST), is a government egistered and licensed, non-profit distributing trekking agency. Established by the SESF Foundation in Khandbari in 2010, MAST is dedicated to organizing Makalu trekking for social impact. Our mission is to transform traditional commercial tourism into community-friendly social trekking.