Comprise of two water falls, Catherine Falls, otherwise called St. Catherine's Falls is around 12 km from Kotagiri and is pretty nearly 7 km from Aravenu on the Kotagiri- Mettupalayam Road. From Aravenu, one need to go through Moon Road to achieve Catherine Falls. It's crossed by the Mettupalayam Ooty street past the mountains and structures the upper stream of the Kallar waterway.
It is named after Catherine, the wife of M. d. cockburn, the pioneer coffee planter of Kotagiri and Yercaud. Falls from 250 feet high, this is found in the midst of thick forest which gives a glorious surrounding perspective of the woods, waylaid by tea gardens arriving at the extent that Kallar Nellithorai basin. The falls is the upper course of the Gaddhehaadahalla stream which drains the Kallar basin. One can see the Dolphin's Nose of Coonoor over the strong crevice in the slopes.