Natural cold water spots that locals actually use regularly for swimming or cooling off?

Some highland streams, reservoirs, and natural pools are used by local communities for swimming, washing, or cooling off, especially in warmer periods. These are usually found through local connections rather than tourist information. Early morning or late afternoon visits are often best. Always check safety (depth, currents, water quality) and go with someone who knows the spot. Some tea estate areas and rural communities have traditional spots. The experience is usually very simple and local. Respect the space, follow local norms, and don't treat it as a tourist attraction. Going with a local makes it more appropriate and safer.