Poquonnock Plains Park is a 15.87 acre piece of land located just east of Groton's commercial district on US Route 1. The park contains three full size sports fields surrounded by a half-mile long stone dust walking path. The Town of Groton acquired the property in 1991 and construction of athletic fields began in 1995. In 2008 the new handicapped accessible Tercentennial Legacy Playground was added.