The property market might be booming around Noosa's waterways, but beneath the sparkling surface a very different population is dwindling.
Hundreds of kilograms of Sydney rock oysters are being added to the waterways around the Sunshine Coast town to bring a once thriving population back from the brink of extinction.
It's one of 13 locations across Australia, part of a federal government-funded program to help ecosystems recover from overfishing and habitat loss in the past century.
