evidence: Darchen: Base Camp for Mount Kailash Parikrama (Kora) Darchen's primary role for most visitors is as the starting point for Mount Kailash Kora, a 52-kilometer (32-mile) trek around the sacred mountain. For Buddhists, Hindus, Jains, and Bon practitioners, completing this circumambulation is considered one of the holiest acts one can perform in a lifetime. [...] - Best Time to Visit: The best time to visit Darchen is between May and September when the weather is milder and the trekking conditions are optimal.