One of the greatest creations during the Polonnaruwa era is the Prarakrama Samudraya (Ocean of Prarakrama) which is a wonderful creation by the great king Prarakramabahu. This is a huge water body covering acres of land thus making thousands of acres cultivable with the streamed waters throughout the year.
The lake is consisting of five water bodies Eramudu Wewa, Thopa Wewa, Dubutulu Wewa, Bhuu Wewa and Kalahagala Wewa. The view of this huge lake is wonderful when the sun sets, the colors of the nature paint an excellent painting throughout the sky. Birds fly towards their nests over the lake making eye-catching patterns. Trees without leaves which were risen up in the water make scenic views.