Kerudavil Limestone cave

                                               It is a Limestone karst feature, situated in “Mandapakaadu” small village of Kerudavil near to Thondamanaru. This cave is called as “Mandapakaadu Kugai” by local people. It`s an underground cave formed by erosion of limestone due to Chemical weathering. Caves often develop stunning features such as stalactites, stalagmites, and columns. The formation of these structures is the reverse of the dissolution of the calcium carbonate with acidic rainwater. This underground structure has entrances on four sides and spreads out for few meters. There are number of similar halls like these structures in the sub – terrain surface of this area. The storm water is discharged to sea through this cave because, it is situated 500m from the deep sea. According to the folk lore, it is said that Tamil kings used this cave for their security purposes during war with Portuguese when they try to capture the Jaffna.