1. Duration: 9-10 hour drive from Dehradun
2. Altitude: 6,520 ft
   

Early in the morning, leave the campsite and follow the trail leading ahead. Pass a cemented bridge and follow the trail going ahead. Observe the Osla wooden bridge, which crosses the Supin River and leads to the Osla village, to your right. The trail is well-defined and relatively flat, with few gentle ascents. Following a 20-minute trek, you will reach Seema. Seema is dotted with dhabas, GMVN, and forest guesthouses. A 200-metre-long vigorous walk will bring you to a second bridge that crosses the River Supin. Do not transgress the line. Take the trail leading downhill, keeping the Supin River on your left as you travel under the bridge. Ensure that you do not ascend the trail from here. Note that the trail progressively ascends from this point forward as you approach the entrance to Ruinsara Valley. Pass by a series of streams and areas prone to landslides. As you enter Ruinsara Forest 30 minutes into the walk, you will cross a succession of enormous boulders. The trail ascends steeply over the boulders from this point. As you approach the point where the trail turns to the right, leave the river below you and ascend quickly. As you enter the Ruinsara Valley, you will be able to see Osla village behind you for the final time from this point. After another 30 minutes of level walking, you will reach the Devsu Thach Meadows.

1. Trek Duration: 4-5 hours | Trek Distance: 10 km
2. Altitude gain: 9,795 ft to 11,450 ft
3. GPS Coordinates: N 31° 04.831, E 78° 27.499

From Devsu Thatch, search for a forest path that descends steeply to the Ruinsara river. The descent is precipitous and rapid. After approximately 15 minutes and 100 metres of cautious descent, you reach a wooden bridge spanning River Ruinsara. Observe the Ruinsara Valley to the right of you. Take the trail inside the valley, with the river on your right, after crossing the bridge.

The next 45 minutes of the trail consist of a series of gradual, level ascents over boulders and sections of riverside pasture. Observe the cement house in front of you. This location is ideal for camping and meal breaks.

As you travel deeper into the valley, the condition of the trail swiftly deteriorates from this point forward. After traversing three mountain bends, you will encounter a succession of landslip zones. In these sections, the trails have been entirely or partially broken. Use extreme caution when traversing these sections.

Depending on the circumstances, traversing the broken bends may require the use of ropes. Continue along this path for another hour and a half until you reach a waterfall on your left. Descend the trail and continue past the waterfall. As you exit the last bend and enter a series of meadows covered with glacial snow and scree, the trail climbs steeply again. Traverse this ridge with caution.

In a few minutes, you'll come across an enormous meadow with birch forests forming a background. The Untigad campsite is an additional thirty minutes away on foot. Here, a modest river bridge crosses a tributary of Ruinsara. The crossing is relatively easy. Once the river has been traversed, proceed straight and rejoin the trail adjacent to River Ruinsara. Look for a temporary bridge across the river. Untigad is the land to the left of this bridge.

We get an early start on the day so that we may there before the afternoon. Along the glacier moraine, we set up camp as we descend below the pass. When you have the valley below you and the pass behind you, this is one of the nicest places to set up tent. Camping at this elevation is a novel experience that is only available on a small percentage of treks.

Today is a light day with a promise of excellent views of the entire Ruinsara and Kyarkoti Valley. Cross the bridge from your campsite and take the trail on the left that is prone to landslides. As you ascend through a labyrinth of debris, the mountain ridge is entirely fragmented. It will take you 20 minutes to traverse this until you reach level ground and can see a tributary of the Ruinsara River on your left.

Determine a suitable location for the river crossing. It is recommended to begin early so that the water profundity is not too great. There is no makeshift bridge, so crossing this tributary may require boulder hopping. A rope can be useful, though it is not required. Once across, continue directly towards the snow moraine in front of you, keeping Ruinsara River on your left.

The magnificent Swargarohini ranges are now fully visible for the first time. In the upcoming meadows, the first snowflakes will be visible. Cross these meadows and proceed to the right side of the valley as you begin to ascend significantly. As you approach the snow line, the ascent becomes progressively steeper. In this section, where the snow is slick, micro spikes or crampons come in useful.

The path leading to Odari veers to the right. You have now entered a funnel-shaped valley. In one or two hours (depending on the rate of ascent), you will reach the summit of the initial ridge. One can see a modest snow ridge from here. Behind this ridge are the Odari ice fields.

Outstanding views of Kyarkoti to the left and Swargarohini massif behind you. From here to the B.C. is an additional 20 to 30 minutes of gradual ascent over slick snow. Observe a flat ice field interspersed with a few semifrozen glacial ponds. This is Base Camp in Bali. Look for level terrain for tent pitching. On frozen snow in June and July, tents will be erected. You will continue trekking and proceed to the Advanced Base Camp of Bali, which is another two to three hours distant along a snow ridge. Rest in the camp there and sleep after dinner.

The ascent to Bali Pass is precipitous, and you may need an experienced guide to locate the route. Here there are no crevasses, but there is a great deal of snow. For secure footing, an ice axe is beneficial here. It is not recommended to ascend in a direct line. Making trails with scissor bends is more practicable.

The ascent can take between 45 minutes and one and a half hours. As you reach the summit of the mountain pass, you will have your first glimpse of the Yamunotri side of the valley.

The summit of Bali Pass is 10 minutes of additional ascent along the connecting ridge to your left. The final ascent is again steep but manageable. The summit of the Bali pass has sufficient space for 30 to 40 individuals to congregate.

Once you reach the summit of Bali Pass, you will have a 360-degree view of the Ruinsara and Yamunotri sidess. One can view Bandarpoonch (White Peak) and Kalanag (Black Peak), as well as the route to Saptarishikund.

Examine the Yamunotri side of the mountain for a connecting snow ridge that descends. This will be your point of descent. In the initial 60-70 metres, fixed ropes must be installed. When descending, care must be given. On the Yamunotri side, the second segment of descent can be accomplished by gliding down towards the A.B.C. site.

Today is a simple day. Follow the trail leading down into the lower Damini forest. You will reach the old Yamunotri trail after 30 minutes of precipitous descent on a well-defined trail. To reach the Yamunotri temple, you must make a diversion at this point. If not, turn right and continue along the trail that descends to the new Yamunotri to Janakichatti pilgrim trail.

From here, the trail is paved, and one can reach Janakchatti in a couple of hours. Take a bus or shared jeep from Janakchatti to Dehradun or Barkot.