Glenham School pupils got their hands dirty cleaning up the Glenelgin Reserve last Friday.
Teacher Karen Stirling said the wetland had been given to the school by farmer David Clarke in 2017.
The school worked with Environment Southland and was now a part of the Enviroschools project.
The Enviroschools project encouraged young people to design and lead their own sustainability projects.
The children had gone on the field trip to help clean up the area, Mrs Stirling said.
“Over the years about 300 trees have been planted in the area.
“It’s good for the children to come out in the sunshine and learn more about the environment with all the different plants.”
Each term the school would set aside days to monitor the stream’s flow and check the plants, she said.
Pupil Wyatt Leigh-Rhind (8) and Ted Rabbidge (7) said they enjoyed the day.
“We like getting our hands dirty and helping clean up the weeds, so that the plants can grow bigger and bigger,” Wyatt said.
From looking after the reserve they were learning how to care for the environment, Ted said.
“All this will help the plants grow and save them.”