The Kala Oya, the third-longest river in Sri Lanka, is a captivating natural wonder that stretches approximately 145km from its source in the Central Province to the Indian Ocean via Gangewadiya in Wilpattu Park. Flowing through Anuradhapura and Puttalam Districts, this river plays an essential role in local agriculture, particularly supporting the cultivation of Rice and Coconut, which are crucial industries for the communities along its banks. The Kala Oya is also a haven for a variety of lifeforms. It is home to endemic species such as the Orange Chromide, as well as a range of Crustaceans that thrive in its waters. The river’s banks are adorned with lush vegetation, including the towering Palu tree and vibrant Water Hyacinths, which flourish in the fertile river environment. These plants not only enhance the river’s natural beauty but also provide vital habitats for local wildlife.