The town of Kodaikanal sits on a plateau above the southern escarpment of the upper Palni Hills at , between the Parappar and Gundar Valleys. These hills form the eastward spur of the Western Ghats on the Western side of South India. It has an irregular basin as its heartland, the centre of which is now Kodaikanal Lake a circumference manmade lake.

Meadows and grasslands cover the hillsides. Gigantic Eucalyptus trees and shola forests flourish in the valleys. Mighty rocks and cascading streams. rise up from the valleys. There are many high waterfalls and ubiquitous gardens and flower beds in bloom.

North of the town, high hills that slope down into the villages of Pallangi and Vilpatti stand guard. On the east the hill slopes less abruptly into the lower Palnis. A precipitous escarpment facing the Cumbum Valley is on the south. On the west is a plateau leading to Manjampatti Valley, Indira Gandhi National Park, the Anamalai Hills and the main body of the Western Ghats.

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