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Short Itinerary
Day 1 : Dehradun to Sankri - 8 h drive
Day 2 : Sankri to Osla (2,700 m) - 1 h drive + 5-6 h trek
Day 3 : Osla to Har-ki-Dun (3,510 m) - 4-5 h
Day 4 : Explore Har ki Dun
Day 5 : Har ki Dun to Waterfall (3,330 m) - 3-4 h
Day 6 : Waterfall to Ruinsara lake (3,600 m) - 2 h
Day 7 : Ruinsara lake to Seema (3,560 m) - 6 h
Day 8 : Seema (2,560 m) to Taluka (2,050 m) to Sankri - 4-5 h trek + 1 h drive
Day 9 : Sankri to Dehradun - 8 h drive
Detailed Itinerary
Day 01 : Dehradun to Sankri drive : 7-8 hours' drive 187 km
We start early from Dehradun and reach the village Sankri by evening. The final stretch is through the Govind Pashu National Park after we cross a check post at Netwar. We rest at night in a guest house or in camps.
Day 02 : Sankri to Osla (2,700 m) : 1 hour drive 5-6 hours' trek : 14 km
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 trek 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.
Day 03 : Osla to Har ki Dun (3,510 m) : 4-5 hours' trek : 10 km
From Osla the trail gradually rises higher and passes through bushes of flowers like orchids, fleece flowers and sunflowers. The ascending path climbs high above the confluence of Supin river and the river from Ruinsara valley.
After traversing higher up along the left side of the river, we camp at a very panoramic spot in Har ki Dun , located at the junction of two valleys: one originating from Jaundhar glacier and the other from beyond Hata glacier.
Day 04 : Explore Har ki Dun
We can choose to relax and soak in the environment or we have several trails as options.
The vast open meadows following the course of the Supin river can be explored. Further ahead of the meadows one can walk among the forests of Bhojpatra trees (Himalayan birch) or get a closer glimpse of the Jaundhar glacier and Swargarohini peak.
One can visit the Marinda Tal just 2km away from Har ki Dun. It is small glacial lake formed by a huge rock obstructing the river which flows down from Borasu pass.
The little-known valley of Hata can be explored which lies in between the above two valleys. It also has some large meadows and a close view of the Hata glacier and peak.
Day 05 : Har ki Dun to Waterfall (3,330 m) : 4 to 5 hours' trek : 9 km
On this day we initially follow the trail coming back from Har ki Dun to Osla. After about 1 km we follow a path downhill on our left which leads to a small bridge and cross over to the opposite side. The path is through a dense forest for about 2 km. Then it turns left and enters the Ruinsara valley. From here it takes about 2 hours to reach the camping ground near the waterfall.
Day 06 : Waterfall to Ruinsara lake (3,600 m) : 2 hours' trek: 4 km
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.
Since we reach early on this day, we have sufficient time to explore the nearby trails. One trails goes towards Black peak and another towards Bali Pass. We return to campsite before evening. Overnight in camps near the lake.
Day 07 : Ruinsara lake (3,600 m) to Seema (3,560 m). : 6 hours' trek: 17 km
We start the day early as we today retrace our steps to Seema, situtated at a distance of 17 km. The path is predominantly downhill except for a short and steep ascent through the forest that we came across on third days' trek.
Day 08 : Seema (2,560 m) to Taluka (2,050 m) to Sankri : 4-5 hours' of trekking : 14 km 1 hour drive : 10 km
Early in the morning, we bid farewell to the Seema and trek till Taluka. A vehicle from Taluka takes us back to Sankri, where we retire for the day in camps or a guest house.
Day 09 : Sankri to Dehradun : 8 hours' Drive: 200 km
The trek to Ruinsara Lake concludes today as we leave Sankri and reach Dehradun by late afternoon on this day.
