A MEMBER of the public has reported seeing a 2m crocodile in the water near the boat ramp at Shelly Beach about 4pm on Thursday.
A Department of Environment and Heritage Protection spokeswoman said wildlife officers were investigating and a spotlight survey was planned for Friday night.
She said warning signs would be put up at Shelly Beach - a popular spot for swimming in Hervey Bay.
"Crocodiles are not usually seen this far south as they prefer warmer waters but their presence cannot be discounted," the spokeswoman said.
"It is possible that a crocodile in the bay is a transient animal as they do swim in the ocean as they move between creek systems.
EHP received a report of a potentially large crocodile swimming off Urangan beach on May 25 and near Kingfisher Bay Resort on Fraser Island on May 30.
She said surveys could not confirm a crocodile's presence and it was unknown if the reports were of the same crocodile.
"There is also a crocodile known to be present in the Mary River," the spokeswoman said.
"Any crocodiles which venture south of the Boyne River near Gladstone are targeted for automatic removal."
She urged residents and visitors to Hervey Bay to be Crocwise.
- Obey croc warning signs
- Don't swim or let domestic pets swim in waters where crocs may live
- Be aware that crocodiles also swim in the ocean
- Stand back from the water when fishing or cast netting
- Never provoke, harass or feed crocs
- Never leave food, fish scraps or bait near the water, a camp site or boat ramp
- Never interfere with or fish or boat near crocodile traps, and
- Always supervise children
The spokeswoman said crocodile sightings could be reported to EHP on 1300 130 372 and the department investigated all crocodile reports.
Further information on crocodiles and being Crocwise is available at www.ehp.qld.gov.au.