This was our final day in Kodai and we had decided to go for a hike to vattakanal following the below route:
Sterling Kodai -> La Saleth Church -> Vattakanal Waterfalls -> Dolphin Nose -> Echo Point
The whole route was ~12KM to and fro. We left around 10AM so that we have ample time to spend at each of the landmarks.
Vattakanal Falls was one of the better waterfalls in Kodai, with a multiple levels. People usually just visit the upstream waterfalls. But if you walk for around 200 mtr down the stream, you will come across another beautiful fall with less crowd.