A cultural tour of Tibet is included by the Kailash Yatra via Lhasa. After taking a plane from Kathmandu to Lhasa, you tour key locations before heading overland in the direction of Lake Mansarovar and Mount Kailash. If seeing Lhasa is a crucial component of your pilgrimage, this is a wise decision. https://holykailashtours.com/trip/kailash-mansarovar-tour-via-lhasa