the.com/trekker

means A person who travels on foot, often over long distances through rugged or remote terrain, usually for recreation rather than necessity.

from From Dutch/Afrikaans 'trekken,' meaning 'to pull, draw, or journey' — originally used for oxen hauling wagons across South African terrain during the Great Trek of Boer settlers. The word picked up its sense of arduous overland travel from that history, then drifted into English as 'trek,' and later got exported to the Himalayas and anywhere else people pay to suffer scenically. The oxen did it for survival; the trekker does it for Instagram.