Boaties have been put on the alert to look for a juvenile humpback whale tangled in fishing gear on the NSW Far South Coast.
The young whale, believed to be about three or four, was spotted off Montague Island, near Narooma, on Wednesday evening.
"It was definitely wrapped in fishing gear," Far South Coast NPWS acting manager Steve Dovey said.
"It was moving slowly south, which they do at this time of year.
"We expect it has moved to off Bermagui by about now (noon Thursday).
Mr Dovey said an alert had been put out via Marine Rescue, asking for people to be on the look-out for the entangled whale.
If it's spotted, and weather permits, authorities will then try to mount a rescue mission.
Rescue crews from the NPWS are on stand-by to free the whale but they need a positive sighting first.
Anyone with information is asked to call the Merimbula NPWS Office on 6495 5000 or Narooma on 4476 0800.