Bring your furry friend to The Seaport Hotel’s annual Howl-O-Ween Costume Party on Saturday, October 28th. Both pups and people are welcome at the event, which will take place outside on the Plaza Level garden from 11:00am-1:00pm. There’ll be a cash bar, costume contest and organic dog treats. You might find yourself crowned a winner in one of three categories: Best Dog Costume, Best Owner Costume and Best Ensemble —Dog and Owner(s). RSVP via Eventbrite, or call 617.385.4000 for more information.