These are the longer or steeper routes, and most are inside forest or national park areas where access is controlled. Plan around permitted days and seasons, go with a guide, and do not treat them as casual day hikes.
7 hikes · reviewed 2026-11-05
A three-hill fort complex that makes a long day trip from Chennai.
160 kmModerateNo permitBest: Nov–FebDIY ~Rs 1,000
A pilgrimage climb up seven hills to a cave temple.
500 kmHardPermit neededBest: Feb–MayDIY ~Rs 4,500
A long forest climb to a cave temple, open on set days.
540 kmModeratePermit neededBest: Nov–FebDIY ~Rs 5,000
Sunrise above the clouds at one of the world's highest tea estates.
560 kmModeratePermit neededBest: Oct–MarFrom Rs 4,900 (Logout)
A multi-day trail from Tamil Nadu up to the Munnar plateau.
580 kmModerate–HardPermit neededBest: Oct–FebFrom Rs 3,899 (Thrillophilia)
A remote grassland peak inside Mukurthi National Park.
590 kmHardPermit neededBest: Oct–FebDIY ~Rs 5,000
Misty tea and cardamom country between two wildlife sanctuaries.
600 kmModeratePermit neededBest: Oct–MarDIY ~Rs 6,000
Velliangiri and Mukurthi are the hardest on this list; Kurangani to Top Station is the longest. All need permission or an authorised operator.