Athirappilly Falls, the most famous waterfall of Kerala, is situated at Athirappilly Panchayat in Chalakudy Taluk in Thrissur district of Kerala, India on the Chalakudy River, which originates from the upper reaches of the Western Ghats. At the entrance to the Sholayar ranges is the largest waterfall in Kerala, Athirapally, which stands tall at 80 feet. Just a short drive from Athirapally, the Vazhachal waterfall is close to dense green forests that are home to many endangered and endemic species of flora and fauna.
There is another waterfall on the way from Athirappilly to Vazhachal Falls, in close proximity to the road, which is locally called "Charpa Falls". Athirappilly Falls is the largest waterfall in Kerala and is nicknamed "The Niagara of India".
Controversy about a state-proposed hydroelectric dam on the Chalakudy River above the waterfalls began in the 1990s and continued through 2017.