Port Stephens Council and the Mambo Wanda Wetlands Committee were this week celebrating the success of their activities since receiving a NSW Environmental Trust grant in 2019.

"In a short time, council and the community has transformed the Mambo Wetlands - treating 25 hectares of weeds, regenerating 50 hectares of bushland and planting 1200 native trees," the council's environmental operations team leader, Jordan Skinner, said.

"We've also held two community workshops and produced three educational videos that focus on the incredible wetlands and the wonderful volunteers who dedicate their time to protecting and enhancing this asset.

"The six information signs we've installed at the wetlands also help to educate our community and visitors about the ecological importance of Mambo Wetlands, its cultural significance, the weeds that threaten the wetlands, our treasured koala population, endangered ecological communities and threatened animals."

The wetlands play a crucial role in maintaining the health of the port by filtering water, providing a nursery for fish and crustaceans, and a vital food source for birds, insects and other native animals.

As part of its wetlands activities, in October the council held a free native plant exchange.

"The native Plant exchange was a huge success with 220 free plants being delivered to residents surrounding the wetlands. We know using native plants in your garden helps us protect the Mambo wetlands by attracting native wildlife and reducing the spread of introduced plants," Mr Skinner said.

"We want Mambo Wetlands to be around for future generations to enjoy. We already have a dedicated group of volunteers who meet for a monthly working bee - but we're always looking for more people to help."

To volunteer email volunteers@portstephens.nsw.gov.au.

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