Possibly the most protected environment in South India – nestled behind three dams in a valley surrounded by Keralan and Tamil Nadu sanctuaries – Parambikulam Wildlife Sanctuary constitutes 285 sq km of Kipling-storybook scenery and wildlife-spotting goodness. Far less touristed than Periyar, it’s home to elephants, bison, gaur, sloths, sambar, crocodiles, tigers, panthers and some of the largest teak trees in Asia. The sanctuary is best avoided during monsoon (June to August) and it sometimes closes in March and April.
Contact the Information Centre in Anappady to arrange tours of the park, hikes (1-/2-day from trek ₹3000/6000, shorter treks from ₹600) and accommodation in tree-top huts (₹3000 to ₹5000) or niche tents (₹6000).
You have to enter the park from Pollachi (40km from Coimbatore and 49km from Palakkad) in Tamil Nadu. There are two buses in either direction between Pollachi and Parambikulam via Annamalai daily (₹19, 1½ hours).