The river is unique in that along its route is a large number of ancient temples, indicating that the richness of the river basin has been identified by humans since ancient times and they preferred to settle down there so that they could grow their crops on the fertile lands. File:Thazhoor View 1.jpg|
Thazhoor Bhagavathy Kshetram Temple on the banks of River Achankovil - View from Thazhoor bridge File:ThripparaTempleEntranceView 1.jpg|Entrance to Thrippara Shiva Kshetram on the banks of River Achankovil • The Karingalichal wetlands spread over
Pandalam Municipality,
Nooranad and Palamel Panchayaths, a place famous for its flora and fauna, is on the banks of the Achankovil river. • The river basin had active
Buddhist settlements in the
Middle Ages. The present day Chamakkavu Sharngakavu Devi Temple near
Venmony a Hindu Temple, was a Buddhist place of worship, which was transformed initially into a Vishnu temple (then known as Sharnga-kavu) and later into a Devi temple. The annual chariot festival and other traditions correspond to the old Buddhist practices of "
kettu kazhcha", which was assimilated into Hinduism in Kerala. The
Karumadikkuttan statue and
Buddhist relics found near
Mavelikkara further underscores this. •
Kumbhavurutty Waterfalls in
Kollam district is in the upper course of the river. == See also ==