Being one of the oldest converted forests in the Western Ghats, Cairn Hills was once a burial site for the tribals. The area had accumulated stone and this made British Christene this place as ‘Cairn’, which means 'a mound of rough stones built as a memorial or landmark, typically on a hilltop'. This 168-hectare of forest in the Upper Nilgiris plateau was developed into an eco-tourism centre by the British in the 1860s. It has an orchidarium, an educational facility, and an interpretation centre. A walk on top of the hanging bridge will be a thrilling and enchanting experience for children as well as adults. The trekking trails will surely refresh your body and mind. 

The Hills on the Avalanche Road are surrounded by settlements and agricultural lands. Among the shola forests, there are also exotic species of trees like pine and wattle. It is also a paradise for bird watchers with species like Indian Hornbill, Malabar Pied Hornbill, Crested Serpent Eagle, Black and Orange  Flycatcher, Amur Falcon and White Throated Kingfisher. The watch tower offers you a 360-degree overview of the landscape. You can buy souvenirs for your loved ones from the eco-shop and the tribal products exhibition. Stay at the private huts in the hills to experience the tranquil experience amidst the forest. Private jeep safaris are also available. The eco-tourism centre is open from 6 am to 6 pm. The entry charge for adults is Rs. 20 and Rs. 10 for children. You can pay Rs. 350 for trekking. Cars and buses can enter by paying Rs. 10 and Rs. 50 respectively. 

Trains, buses, and flights are available from Coimbatore, which is 85 kilometres away from the destination. Additionally, private cabs are also available.