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It’s unbelievably fun to whisper across this parabolic dam and hear others across the way.
revett2016, TripAdvisor
This is the largest whispering wall I know of, as it’s 140 meters long. What happens is that the sound hugs the inside of the concrete wall and is transported with surprising loudness to the other side of the dam. Do you know of a bigger whispering wall? Please comment below.
Location
Info from the Barossa visitor centre.
