The Whispering Wall is actually a dam in the Barossa Reservoir, South Australia. It was completed in 1903 and was a revolutionary engineering feat for it's time. However what attracts visitors is the dam's acoustic qualities. Visitors can whisper at one side and their words can clearly be heard at the corresponding position on the opposite side.
In this video we get a look at the Whispering Wall and the various views along the Barossa Reservoir from the air. A DJI Spark drone was used to capture the footage.