The Pin Bhaba Pass Trek is a dramatic crossover journey connecting the lush green valleys of Kinnaur with the stark, high-altitude desert of Spiti in Himachal Pradesh. Starting from Bhaba Valley and crossing the 16,105 ft Pin Bhaba Pass, the trail showcases forests, alpine meadows, glacial streams, and rugged landscapes in one expedition. Ideal for experienced trekkers seeking raw Himalayan contrast and adventure.