The popular horse tail waterfall that you can find in Koslanda is Diyaluma Falls. Standing 628ft above road, Diyaluma Falls is the second largest waterfall in Sri Lanka. In the Sinhalese language the term Diyaluma was derived from the two words "Diya" and "Haluma", which means the swifting of water. A tragic story resides behind this waterfall about a king who fell in love with a woman from a lower cast.
The king and the women fled after their subjects heard the stories about the affair. Arriving to the fall, they both climbed upwards. The king managed to reach the top where the women stuck on the rocks failed to make it to the top. Her death led tears on the kings eyes. The folklore mentions that the tears were collected by a deity and turned into a waterfall.