A 44-acre former cranberry bog in Harwich, Massachusetts, has been successfully restored as the Robert F. Smith Cold Brook Preserve. The project focused on revitalising wetlands and a mile-long stream, leading to a significant increase in local wildlife. Notably, the restoration has attracted various insect species, including a growing butterfly population. Beyond biodiversity benefits, the preserve enhances water quality for the Harwich community and improves stormwater management capabilities. The restored area also serves as a valuable resource for ecological studies and research. This transformation demonstrates the positive impact of ecological restoration efforts on both the environment and the local community in Massachusetts.