Start your first day by heading to the beautiful Agaya Gangai Waterfalls, one of the most popular attractions in Kolli Hills. The waterfall is known for its stunning views and the spiritual significance it holds for locals. You can take a relaxing dip in the natural pools formed by the waterfall's cascading waters or enjoy a picnic lunch surrounded by the breathtaking scenery. Don't forget to try the local delicacies sold by the food vendors at the falls.
On your second day, head to the famous Arappaleeswarar Temple, a significant pilgrimage site for Hindus. The temple is located atop a hill and offers a fantastic panoramic view of the surrounding peaks. The temple complex comprises of several shrines and halls that you can explore and learn about the religious and cultural significance of each. You can also indulge in some authentic temple cuisine sold at the many food stalls around the complex.
If you have more time, you can visit other popular attractions in Kolli Hills, including the Eriyedu Falls or climb the seventy hairpin turns to reach Seekuparai Viewpoint that offers a stunning panoramic view of the valley below. If you have an extra day, try an overnight stay at the Vasanta Vihar guest house in Semmedu, located close to both Agaya Gangai Waterfalls and Arappaleeswarar Temple. If you have less time, skip either attraction but prioritize visiting Agaya Gangai Waterfalls to experience the natural beauty at its best.