The Onset Bay Association (OBA) will host an informal, after-hours mixer at The Stonebridge Bistro, March 10, at 5:30 p.m. to kick-off their upcoming season of activities.  Join local business and residents to learn about the history of the Onset Bay Association, their plans for the future, and how you can get involved.  Appetizers and beverages will be available.  Please RSVP to the Onset Bay Association, 508-295-7072, by March 5.