Arup’s ground-breaking and award-winning project uses mycelium, the vegetated strain of fungi, rather than artificial plastics to create floating wetlands in an Australian wetland restoration pilot project with impressive outcomes. These mycelium floating wetland modules, called ‘Mushi’, are becoming thriving habitats as the plant roots absorb and cleanse the water. With the project moving into manufacturing, there are broad opportunities for urban waterways and run-off mitigation around infrastructure.