Boat set to survey Aberdeen's Rubislaw Quarry
A boat is to be lowered into one of Europe's largest man-made holes - Aberdeen's Rubislaw Quarry - to carry out survey work later this month.
The quarry closed in 1971 and now needs work to lower water levels.
The quarry - credited with giving Aberdeen its Granite City name - was sold to Sandy Whyte and Hugh Black in 2010.
They are still deciding what to do with it but know they need to tackle the water levels.
The 10-tonne, 30ft boat will need two or three days in the quarry, but once the findings are analysed it is thought pumping could begin early next month.