Ganga river

Vishnu, in his incarnation as the dwarf brahmin, took two steps to cross the universe. On the second step Vishnu's big toe accidentally created a hole in the wall of the universe and through it spilled some of the waters of the River Mandakini. Meanwhile, the great mythological king Bhagiratha was concerned to discover that 60,000 of King Sagara's ancestors had been incinerated from the stare of the Vedic sage Kapila. Wanting these ancestors to reach heaven, Bhagiratha asked Kapila how this might be achieved. The response was to pray earnestly to Vishnu and perform ascetic acts for a thousand years. The great god, gratified by Bhagiratha's piety, agreed for Ganga to descend to earth where she might wash over the ashes of the 60,000, purify them, and permit them to ascend to heaven. There was a problem though, that if Ganga merely dropped from heaven her swirling waters would do untold damage. Therefore, Shiva offered to gently lower the goddess in his hair which he did, rather cautiously taking 1,000 years. Safely arrived on earth, Bhagiratha guided Ganga across India, where she split into many subsidiaries, and successfully washed the ashes of Sagara's ancestors in her sacred waters.
The Ganges often appears in Hindu mythology as a background location, for example, as a place where the famous figures Atri and Death performed various acts of asceticism. In the Siva Purana the Ganges carries the seed of Shiva which, when carried to a clump of reeds, became Skanda. In the Matsya Purana and the story of the Great Flood the first man Manu throws a giant fish into the river which then continues to grow to gigantic proportions, eventually escaping to the sea

References (Example)

[1] <name>, '<title>' (online, <year>) <link>.
[2] BULB, 'Write to Earn. Read to Earn' (online, 2022) <https://www.bulbapp.io/>