There is currently a red alert toxic algae warning in place at Waipoua River at Colombo Rd Bridge due to high levels of toxic algae being observed. The presence of detached mats has also been observed. This makes it easily accessible and represents the highest risk to young children and dogs.
We recommend no swimming and keeping dogs away from this part of the river until further notice. Toxic algae represents a very real risk to human and animal health.