It is again safe to swim at Rainbow Beach from a water quality perspective.
Lifeguards put up the flags at the beach at 9am on Wednesday [January 13] after water testing came back all clear.
Water results had been improving before the all clear came back on Tuesday.
Beachgoers are advised only to swim at Rainbow Beach when the flags are up.
It is important to stay up to date with the conditions.
Port Macquarie-Hastings Council monitored the water quality in Duchess Gully Creek and Rainbow Beach after a controlled overflow from a wastewater treatment plant.
Rainbow Beach and Duchess Gully Creek had been off limits to swimmers after treated overflow was released from the Bonny Hills/Lake Cathie Wastewater Treatment Plant into Duchess Gully Creek, which subsequently flowed to the beach.
The controlled overflow to maintain normal operations at the treatment plant followed heavy rains.
Beachgoer Neil Martin, who attended the beach on January 8, said he had been swimming on Wednesday morning before the beach closure announcement and he wasn't that concerned.
Beachgoer Jesse Hill, who attended the beach on January 8, said it was unusual to see the overflow water running out to the ocean last week.