The owners of one of Europe's largest man-made holes are considering opening it as Scotland's first commercial deep-water inland diving centre.
The Rubislaw Quarry, which has been credited with giving Aberdeen its Granite City name, was sold to Sandy Whyte and Hugh Black last summer.
The quarry was closed 40 years ago and is now 140m deep with water.
A team of divers recently surveyed the quarry and have said they believe it would make an ideal diving centre site.
The group dived 105m and found some rusting quarry equipment.
The owners have said they would consider the diving venture proposal.
After buying the five-acre quarry Mr Whyte and Mr Black said they wanted to explore ways of sharing with the public the beauty of the landmark.