Suraj Tal lake which means lake of the Sun God lies just below the Baralachala Pass in Lahoul & Spiti District of Himachal Pradesh. It is 65 km from Keylong, the district HQ of Lahoul & Spiti. It can be reached via the NH-21 which is also known as Manali-Leh Highway. Suraj Tal Lake is the source of Bhaga River which joins the Chandra river downstream at Tandi. The Chandra river originates from Chandratal Lake. Together these two rivers form the Chandrabhaga river in Himachal Pradesh territory. This river eventually becomes the mighty Chenab river after it enters Jammu and Kashmir. This lake and the area is a major destination of trekkers in the region. Suraj Tal is just short of 3 km from Bara Lacha Pass which is 4890 meters (16,040 ft) from sea level.
There is another small lake near Suraj Tal known as Deepak Tal. Deepak Tal is about 24 km from Jispa, which is also appx 24 km from Keylong. The area around Deepak Tal is a beautiful place where trekkers/cyclists spend the night before their uphill journey to Bara Lacha Pass.