Jenny Grist Mill
My family loves Plymouth Mass. The kids have a great time taking a scenic walk from the Jenny Grist Mill 9 (a real working Mill with a restaurant, ice cream shop and gift shop inside) to the waterfront. It is a lovely walking path for families with takes you along side a beautiful running river. You can skip rocks and watch fish along the way. The path opens up to a nice picnic area near the Plymouth waterfront, with historic statues and beautiful plantings. The walk only takes about 20 minutes- perfect for little ones. pack a lunch a lunch, or walk further to waterfront where seafood and other casual dining establishments are located, then take a duck tour or trolley tour around Plymouth! The possibilities for a great day trip are endless!
The path you mentioned and grassy area with statues is caled the Brewster Gardens. A lovely place to walk and watch the ducks!