Agaya Gangai Waterfalls is a popular trekking destination in Kolli Hills. The trek route is surrounded by scenic beauty and will give you an adrenaline rush. The trail is moderate, and it takes around 45 minutes to reach the falls. On the way, you can also see some medicinal plants and herbs used in Ayurvedic medicine.
Arapaleeswarar Temple is an ancient and the most significant temple in Kolli Hills. It is believed that the temple was built by Valvil Ori, who was a ruler of the Maveli Nadu. The temple is dedicated to Lord Shiva and has many exquisite sculptures and carvings. You can also enjoy the peaceful atmosphere and the scenic beauty surrounding the temple.
If you have more time, you can visit the Siddhar Caves located near the Agaya Gangai waterfalls. These caves are believed to be the meditation places of the Siddhars, who were great Tamil saints. If you have less time, you can skip the temple visit and explore the local market, which offers authentic and delicious Tamil food, handicrafts, and souvenirs. Do not forget to carry water bottles and comfortable shoes for the trek.