The Rainbow waterfalls at Keezharkuth in Idukki, which cascades down a rock from a height of about 1500 m is a wonderful attraction of this spot. It can be seen throughout the year in full swing. The forest around this spot is home to various medicinal plants.
Keezharkuthu waterfalls is an ideal place for rock climbing, mountaineering, camping and trekking. The waterfalls is situated at near Malayinchi at Udumbannoor Village in Idukki.