According to the Varaha Purana, as quoted by Srila Jiva Gosvami, there is no difference between the water of the Ganges and the Yamuna, but when the water of the Ganges is sanctified one hundred times, it is
called the Yamuna. Similarly, it is said in the scriptures that one thousand names of Vishnu are equal to one name of Rama, and three names of Lord Rama are equal to one name of Krishan." (Srimad Bhagavatam 1.19.6 purport)
Simply by bathing in the Yamuna, anyone can diminish the reactions of his sinful activities." (Krishna Book, Chap 38)
By taking bath in the Yamuna River people are liberated and become Krishna conscious." (Caitanya Caritamrita Antya 4.98 purport)
There are many devotees in Vrindavana who regularly bathe in the Yamuna, and this cleanses all the contamination of the material world." (Srimad Bhagavatam 5.8.31)
One should not give up the process of austerity. If possible, one should bathe in the water of the Yamuna. This is an item of austerity. Therefore, our Krishna consciousness movement has established a center
in Vrindavana so that one may bathe in the Yamuna, chant the Hare Krishna mantra and then become perfect and return back to Godhead." (Srimad Bhagavatam 6.5.28 purport)
The Yamuna River washed Krishna's lotus feet when the Lord appeared in Vrindavana five thousand years ago. Lord Krishna sported daily with His boys and girlfriends in the Yamuna River and consequently that river is also caranamrita." (Srimad Bhagavatam 11.6.19)
(courtesy: http://mathuravrindavan.com/mathura1/yamunariver.htm)
