We join a combined team from the Invercargill City Council, Environment Southland and DOC in a cleanup of New River Estuary and see how what used to be a landfill has been transformed into a public amenity with walkways and a boardwalk over the water. We also talk to the pupils of Lochiel School who have taken on a pest eradication project in Forest Hill bush. Then we visit Bluff to see how insulation can make homes warmer and healthier.