Poor water quality showed up at the Anaura Bay lagoon, in the Hangaroa River at Doneraille Park, and in the Wharekahika River.
There was no recent data provided for Lottin Point, Onepoto Beach past Hicks Bay, and Te Araroa.
Likewise for the Rere Falls and Rere Rockslide.
The council has put out a handy guide online.
“If you cannot see your toes when standing in calf-deep water, the water quality is not the best for a swim,” is the message.
“Be aware — lagoons and estuaries often have poor water quality and the bacteria can make you sick.
“They may seem nice safe places for children to swim, but the quality of the water is usually not good.
“If water seldom meets health requirements a sign will be in place.
“Avoid the lagoons at Wainui Hamanatua Stream, Turihaua and Waiotu lagoons.
“Although lagoons look nice and safe and are often warm, we don’t recommend swimming in them.”
The council website provides links to the latest water quality data.