spiti valley, a high-altitude desert in the himalayas,

spiti desert tibetan buddhist monasteries remote surreal beauty himalayan terrain river key monastery tabo dhankar chandratal lake kunzum pass kaza langza hikkim kibber pin national park camping stargazing snow leopards ibex blue sheep cultural immersion traditional chham losar spiritual retreat meditation philosophy flags wheels vistas snowcapped peaks rocky sports whitewater rafting rock climbing mountaineering jeep safaris ancient trade transhimalayan region buddhism art iconic landmarks unique architecture