Also known as Chalakudi or Punnagai Mannan Falls.
Visited - Nov 2013
At Sunset, Dusk and Dusk+
Base Views - Feel the force!
Distant Views - See the Force!
I also found this place and surrounding very environment friendly. Many boards found like this with messages and bins to do your part.
By Air - Cochin is the nearest airport Roughly 40Kms/1.5Hours from the falls
Cab operators have pickup/drop services from both locations
Charpa was a OK experience. Since it is not that hard to get to and is enroute to Vazhachal, you might as well make a stop.
Vazhachal on the other hand was quite impressive. The flow and patterns of the water and rocks was definitely worth the visit.
I did not want to waste any more time away from Athirappally, but caught sight of this board that might give you more ideas on planning your trip.
You can go to the top of the falls and as well as the base of the falls. Amazing views and variety of experiences. Can also get into the water depending on water levels.
Know before your go:
Athirapally is a small town with not much outside of your hotel and the falls itself.
Go there for the falls and falls alone.
Trek with a guide. Is is a vast forest area.