I looked through the old posts and did not find anything about this hike. It sounds epic.

186 miles and camping at 16,400 feet.

Typical time is 25 days and 50% do not finish.

The crescent-shaped trail on the northern border of Bhutan starts in Paro, ends in Bumthang, and traverses approximately 48,000 feet uphill through rugged terrain, shadowed by massive peaks. The trek crosses 11 high mountain passes over 16,000 feet, with four of those higher than 17,000 feet.
https://www.nationalgeographic.com/a...-speed-record/