WARNING signs are still in place after a search of the water off Urangan failed to find evidence of a reported crocodile.
The search then moved to the Mary River on Tuesday.
Members of the public are still being urged to report any sightings of a crocodile in Hervey Bay beach areas.
Fishermen told authorities they believed they saw a large crocodile near the Waterfront Restaurant on Sunday morning.
Signs were placed in the area warning a crocodile may be nearby.
Unfortunately Sydney tourists Derek Mitchell and his daughters, Maya and Elsa missed the warnings and went swimming near where the suspected sightings were.
A Chronicle photographer relayed the message to the visitors.
A Department of Environment and Heritage Protection representative said two surveys, on Monday afternoon and evening, did not confirm the presence of a crocodile off Urangan Beach.
EHP looks into all reports and wants the public to phone through any crocodile sightings on 1300 130 372.