The 15m high Ranmudu Ella fall in Thunmodara is situated in a tributary of the Wakganga River, and the waters feed the Kelani River. The fall is a victim of its own success. Due to its popularity, especially at weekends, the surrounding ecosystem is under threat from large numbers of trampling visitors.
It can be found 48km from Colombo, in the Colombo District Hanwella PC. From the Columbo – Avissawela highway head to Tumodara village. The fall is 0.5km from here.