Asupini Falls which is one of the widest waterfalls in Sri Lanka is located in Aranayaka area. This attractive itself, famous in Kegalle District and continuously replenished by Maha Oya, which draws most of its water from Disawe Ganga in Rakshawa mountainous area in Ihala Korale in Mahanuwara District, is 120 m tall.
The fall slides down to Ragala and Naththe Mountains that are bounded to Central and Sabaragamuwa Provinces. It is located 18 km away from Mawanella. A folktale amplifies that a horse which belonged to a general of an ancient King has slipped dead, when it was leaping over the fall and later the waterfall was therefore denominated as “Asupini Falls”. As ancestors explain, it was known as “Rawana Falls” before conferring the title “Asupini Falls”. The streams is replenished into a Signature of Sri Lanka 119 pool at the feet of the fall sliding down a rocky-plain effervescing exquisitely without spearing water down. Folklore reveals about a secret tunnel that proceeds to “Dalada Maligawa” from milieu of this treasure trove.