Post breakfast we are transported from Sankri to Taluka. The drive is a bit bumpy. The trek commences from Taluka on a stony path. With the river Supin gushing through rapids beside us, under the shade of walnut, pine and other trees, the walk is quite pleasant. Often the passing villagers greet us on the way.

The path crosses over a few streams which merge with Supin. After a few hours of walk the village of Gangad can be seen towards the left, across the river. We continue our hike and after about an hour’s walk, the quaint village of Osla unfolds itself. Seema is a tiny settlement opposite to the river from Osla. We set camp here or stay in a hut with a local family in the village.

On this day, we continue along the true right of the valley along the Tons river. The trail ascends through the fields and climbs high above the confluence of the Tons and Ruinsara gad. The walk through the forest is beautiful, with Kalanag (6387) visible straight ahead in the valley. We camp beside the stream and close to the waterfall.

We ascend into the Ruinsara valley. There is a stark difference in the vegetation with pine and fir giving way to birch and rhododendron. Ruinsara lake is a lovely lake surrounded by meadows and rhododendron bushes. It is considered sacred by the locals. Overnight in camps near the lake.

We spend some time near the lake and can hike further ahead. By late afternoon we return to the waterfall campsite. Camping is not allowed at the Lake due to its fragile biodiversity.

We trek the day at a very comfortable pace as we head back on the same route. We arrive at Devsu Bughyal, a small campsite tucked with towering hills on one side and tall pines on the other side.

Being the last trekking day with a long distance but overall descent, we start the day early and trek through Seema, Gangad village and finally arrive at Taluka before evening. We take a vehicle to Sankri and check into the Guest house over the night.

We drive back to Dehradun from Sankri. Arrive by late afternoon for overnight stay at Dehradun. Trekkers can further opt to stay at Mussoorie or head further to Rishikesh or Tapovan for a more spiritual end to the journey.