There are rivers that announce themselves with a roar, and then there is the Kunthipuzha—soft-spoken, almost secretive—as it slips through the deep green folds of Kerala’s Silent Valley National Park. Here, in one of the last stretches of untouched tropical rainforest in the Western Ghats, the river moves with an unusual restraint. Shallow and unhurried, it glides over its stony bed like a silver ribbon, its surface rarely broken by turbulence.


