Thalaiyar Falls, also known as Rat Tail Falls, is a stunning waterfall cascading down from a height of 297 meters (974 feet), making it one of the highest waterfalls in India. Located near Kodaikanal in the Dindigul district of Tamil Nadu, it is a sight to behold. The waterfall is formed by the Peraru River plunging into the valley below. While the falls are captivating from afar, access to the base is restricted and challenging, involving a strenuous trek through dense forests. The best views are obtained from the Dum Dum Rock viewpoint in Kodaikanal, offering a panoramic perspective of the cascading water and surrounding landscape. The surrounding area is rich in biodiversity, adding to the allure of this natural wonder.
Thalaiyar Falls has been a prominent natural landmark in the region for centuries. Its name, 'Rat Tail Falls,' comes from its thin, long appearance as it descends the cliff face. Historically, the area surrounding the falls has been inhabited by indigenous communities. While the falls themselves have remained largely untouched, the surrounding areas have seen development related to tourism, including viewpoints and trekking routes. The ecological significance of the falls and surrounding forests has led to conservation efforts to preserve its pristine beauty.