- Picnic.com's New Look At Brandywine Picnic Park, we've created a new look for our website. Look around, let us know what you think! We're Open! It's the start of another fantastic and memorable season here at Brandywine Picnic Park. start planning your trip today! Brandywine Picnic Park is a great place for group get-togethers! Learn more about setting up your own group picnic. Click here. There ...www.picnic.com