A man and baby girl have died after falling from a reservoir wall north of Adelaide.
SA Police said emergency services were called about 4.30pm Wednesday to the Whispering Wall at Williamstown near the Barossa Valley, "after witnesses reported seeing a man and infant go over the edge of the wall and fall to the ground".
Local detectives, Major Crime Branch and forensic crime scene investigators have been to the scene to examine the circumstances of the incident.
Police said no one else was being sought over the deaths and a report will be prepared for the state coroner.
The Whispering Wall is in the south of the Barossa Valley, north of Adelaide.
It is the retaining wall for the Barossa Reservoir and attracts tourists for its unique acoustics.
Whispers made on one side of the wall can be heard from up to 100m away.
It is 36 metres high.
