Tirtha is a bridge to the celestial world. The river Godhavari has 14 Tirthas which are also places where one can take a holy dip:
Govardhan Tirtha
Pitru Tirtha
Golan Tirtha
Brahma Tirtha
Runamochan Tirtha
Krishna Tirtha
Papnashan Tirtha
Koti Tirtha
Agni Tirtha
Shukla Tirtha
Aruna Tirtha
Surya Tirtha
Chakra Tirtha,
Ashwini Tirtha.
Cited from website:Nashik.com The Wikipedia article focusses on Jain Tirthas. In Nepal a Tirtha is at a confluence of two or more rivers.