We monitor more than 100 popular recreational sites in Canterbury during summer. Health warnings are placed at sites where an increased risk of cyanobacteria or faecal contamination is present. Advisory notes may be present but are not an official public health warning.
There are no current marine warnings.
Cyanobacteria can occur in any waterway, at any time, so it is important that you know what it looks like. Find out more about cyanobacteria in waterways and how you can protect yourself and your animals.
Faecal contamination poses a risk to health, check out LAWA’s swim smart checklist, to know what to check before you swim.
You can also help stop the spread of marine pests that pose a major threat to our region's beautiful coastal waters.