Permit-only forest reservoir, 21 km deep inside the Palani Hills reserve
Spread over 59 acres inside the Palani Hills reserve forest, Berijam Lake is a protected drinking-water source for the town of Periyakulam below, which keeps it free of the crowds and shops found at Kodaikanal's other lakes. It's reached via Moir Point on a scenic but narrow forest road, with a real chance of spotting bison, deer, or the crested serpent eagle along the way.