Tributary of the Kotmale Oya forms the Devon Falls by falling off a 97 meter tall sheer steep. Devon was a pioneer coffee planter in Sri Lanka during the colonial times, and his plantations were situated near the falls hence this waterfall was named Devon Falls. Waters of the Devon Falls flows through and connects to the Mahaweli River. The falls can be easily accessed from Thalawakele, and can be seen from the A7 road which goes from Hatton to Nuwara Eliya.
The Devon Falls can be seen from a distance from a viewing deck. The sheer falls creates an extremely beautiful sign for anyone. Reward yourself by taking a pair of binoculars. The tedious walk down to the viewing deck takes about 15 minutes. Like it's big brother St. Clair’s Falls the Devon Falls is also among the seven waterfalls affected by the development of the Upper Kotmale Hydropower Project.