Aberdeen lifeboats were launched on Saturday afternoon following a concern for a person call at the beach.
However, when they arrive at Fittie, they discovered it was a scuba diver who sparked the 999 call.
The coastguard labelled the incident a “false alarm with good intent.”
Both Aberdeen RNLI’s inshore and all-weather lifeboats were sent out to search, along with coastguard rescue teams from Aberdeen and Stonehaven.
A coastguard spokesman said: “We received a 999 call reporting concern for a person in the water at Aberdeen beach.
“The call came in at 2.46pm.
“They found that the person was a scuba diver and the call was a false alarm with good intent.
“He was found at 3.15pm.”
Both lifeboats were stood down and readied for service.
The call ended on a cute note, as the crew returned to show to a dog who was waiting on them returning.
A statement from the Aberdeen RNLI read: “The crew received a lovely warm welcome when they arrived back.
“Our volunteer crew drop everything when the pager goes, and sometimes, the dogs have to come along too.”