Khumjung is a village in Khumbu.
High above the village of Khumjung is a sacred cave. After completing practices at Maratika (Haleshi) in Eastern Nepal, the founder of Tibetan Buddhism, Padmasambhava, or Guru Rinpoche as he is often referred, stayed at this cave for several days. On the outer right wall (looking from outside) there is a miraculously arisen Sanskrit character, and half way up the climb, near some retreat houses, there is a very clear hand print of an accomplished yogi imbedded in stone. The climb is arduous, and in order not to wander in the wrong direction, it is necessary to keep the cave in focus. From below, it can be identified by the prayer flags hung outside.
The Khumjung Monastery (Khumjung Gompa) displays a scalp that purportedly comes from a yeti. While at the gompa, ask the monks (lamas) for directions for getting to Guru Rinpoche's cave.