Yamunotri is a city in the Indian state of Uttarakhand.
Various waterfalls on the trek to the temple. Hot sulphur springs. If one has the resources like porters, mountaineering gear food, tent etc then one can also trek further up to Saptarishi. Mind you it is a very treacherous trek.
The destination of all pilgrims is usually to bath in the icy waters of Goddess Yamuna before having a darshan of the black idol of the Goddess herself in the main sanctum sanctorum. People usually have a dip in the taptkund adjacent to the temple before having a glimpse of the deity. The taptkund (natural hot sulphur springs) are said to have numerous medicinal properties. Some devotees however venture out to the river below to bath in its icy waters. It is said that Yamuna's brother, Lord Yama (god of death) had promised her that whoever takes a dip in her waters will be spared the excruciating tribulations of hell. The dip in the icy waters makes a sudden surge of energy in the body like that of electricity charging a dead battery.