There task was simple, take revenge on nettles and Himalayan Balsam, and they did.
Below are some before and after photos.
Also whilst they were down there they saw numerous butterflies and a strange trail in the silt......what could it be?? It is a Freshwater Mussel, moving slowly through the silt.
They will be back next week for more of the same. Our park depends on groups like these to help with it's overall maintenance.