The Dhumdharkandi Pass trek is one of the most challenging and taxing treks in the Garhwal region of Uttarakhand. The trek connects the Tons to the Bhagirathi valley, over the Dhumdharkandi Pass at an altitude of 5300 m, which is helmed between Swargarohini (6252 m) and Bandarpunch (6320 m). The trek is known for its complicated placement and unpredictable weather. It is said that in the year 1815, a foreign national James Baillie Frazer discovered this pass. His collected information states that this pass was popular among the villagers in the ancient times as a short cut transmit to cross over Bhagirathi Valley to reach the remotest parts of Rawaeen Valley (the upper parts of the Tons valley). In fact, the same route was used by traders and invaders as well for years. It's a spectacular and scenic traverse that takes you towards Ruinsara Lake before ascending over 5000 m Yamunotri Pass down to Yamunotri again. Thereafter it is an easy pleasurable descend. On the way you will get to meet the pilgrims returning from the Yamunotri Temple after offering their prayers. The trail of lovely woodlands, wild flower meadows, alpine blossoms, avian guests and varied river crossings will take you to this pass. Path laden with rocks, rubble, moraines and snowy patches will brace you throughout the route to reach Dhumdhar.