The biggest sanctuary in Tamil Nadu sprawls over an area of about 958 sq.km.The animals found here are gaur, elephant, tiger, sloth bear, wild boar dog, nilgiri, langur etc.Top Slip, its main tourist area, is located in the north-west corner. Its name was derived from a practice followed during the time of British rule, when the timber harvested from the forest was slipped down a canal from the hills to the plain below. There is a bird watch tower at Kariam Shola, 2 km away from Top Slip. The range officer can arrange trekking and hill climbing and elephant rides at the sanctuary.21 km away from top the slip lies a small waterfall called Monkey falls at Aliyar.A town Amaravathy Nager has Crocodile breeding centre.
Notified as a sanctuary in 1976, it falls in Pollachi, Udumalpet and Valparai taluks in Coimbatore District.Abount 108 sq.km of grasslands was declared as a National Park in 1989, and is known as the Grass Hill National Park.The sanctuary is an important watershed area for Coimbatore and Erode districts. The perennial rivers that originate here feed major reservoirs like Parambikulam, Aliyar, Thirumurthi, Upper Aliyar, Kadambarai, Sholayar and Amaravathy.
The sanctuary has a lot to offer visitors. If you are on a 3 to 4 days trip, you can explore the sanctuary on foot, on elephant back or on the tourist bus. To explore the sanctuary at a leisurely pace, opt for an elephant safari. You can book your ride at the Tourist Reception Centre at Top Slip. If you are keen on trekking in the sanctuary, it is compulsory to be accompanied by a guide. Bus rides into the sanctuary leaves in the morning and afternoon from the reception centre
Getting there: Coimbatore Airport (76 km/2 hrs) From Coimbatore, buses leaves for Potlatch every 15 minutes.Pollachi (36 km/1 hrs) is the nearest railhead. Buses available for Top Slip from Coimbatore; alternatively, hire a 4Wheel Drive to the duration of your visit.Where to stay: There are a number of Forest Rest Houses in the sanctuary; some of them have hot water and provision for meals, while others have only basic facilities. For booking any of the Forest Rest Houses or trekking sheds, get in touch with the Wildlife Warden.