Have you ever clapped at a lake and watched it answer back with bubbles? In the sleepy village of Netravali, tucked in the folds of South Goa’s Sanguem taluka, there’s a waterbody that does exactly that. Known in Konkani as Budbudyanchi Tali—quite literally, “Lake of Bubbles”, this 400-year-old freshwater tank is as much a mystery as it is a delight.

