Langza is one of the most beautiful villages of Spiti Valley situated at an altitude of 4400 m. There’s a belt in Spiti Valley in and around Langza that is rich in fossils of Marine animals and plants which were here millions of years ago when Spiti was submerged under the Tethys Sea. When in Spiti, do take a walk in mountains around Langza and Hikkim to find these sea fossils buried under big rocks. Do visit Chaudua (local name for fossil) centre as well. While taking a walk you might as well get lucky to see Tibetan Wolf, Red fox or a Blue sheep.