The WAWULPANA FALL is one of nature's unique creations. It is an internal waterfall within a prehistoric limestone cave, which according to Sri Lankan and French scientists who came here on an expedition in 1960, is 500 billion years old. It is the oldest such cave on the island and the millions of bats that have set up home here is an awe-inspiring sight.

The cave is 135m in length and has two parallel doors. In addition to the main cave, 12 others can be found here. To the right above the door is the bat colony and the cave in which they give birth is known as the 'Malwathu (Garden) Room. It can be dangerous however, as reptiles slither their way inside, attracted by the presence of the bats' young. The limestone formation covers an area of 52 square kilometres. Within the cave is a limestone pit, which is still growing. There are fossilised remains of an animal here. Adjacent to this is a layer of sea coral. So many and varied are the attractions of the cave.

Around 100 plants unique to Sri Lanka thrive in the area surrounding the fall. The calcium carbonate, iron hydroxide and magnesium that cause the yellow-coloured water in the aquifers, is believed by village elders to cure skin ailments.

The fall is located in the Wavulpane limestone caves at Walapane village in the Ratnapura District . Take the road from Pelmadulla towards Embilipitiya for 15km, then turn on the Sanwardene Mawatha road up to Walapane school. It is a trek of 1km across the proposed new Walapane highway to reach the fall.