From Janki Chatti (2521m), Yamunotri temple is about 5km (Altitude: 3246m). Start early in the morning, you can do this in like 2-2.5hrs depending upon your capacity or may hire a porter. There are many other temples near Yamunotri shrine.
Day 4 and 5Yamunotri to Uttarkashi (halt)to GangothriUttarkashi is the holy town set on the banks of Bhagirathi River at an elevation of 1158 meters. This town is the starting point for Treks to Nachiketa Tal, Dodi Tal, Dayara Bugyal (bugyal, a high-altitude meadow) Sat Tal, Kedar Tal, Gangotri-Gaumukh-Nandanvan Tapovan.Visited sacred Vishwanath Temple dedicated to Lord Shiva . There is a trident made of eight imperative metals. According to Hindu Mythology, Lord Shiva slaughtered Vakasur with his Trishul at this sacred place. The Nehru Institute of Mountaineering set up here imparts mountaineering training to young people . Evening, we walked through 1 km long tunnel that connects 2 parts of town , purchased varieties of pahadi fruits (from a Kannadiga vendor!) and had sumptuous buffet dinner at the hotel.Early morning on day 5 at 5.30 A.M, all of us were out to make the awaited trip to Gangotri. The road to Gangotri passes through Maneri, Bhatwari, Gangnani and Harsil. Thoroughly enjoying the scenery with swooping ranges and gazing changing facets of Bhagirathi as she makes her way across the Himalayas, we reached Gangotri at 10.00 am. The road is very bad after Gangnani, it is quite dangerous also, a driver must be very cautious on this route. Flowing Bhagirathi, green valleys with cedar and pine trees kept company through- out our journey. Gomukh glacier becomes visible as we approach Gangotri.