Leaving the Island, Carrying the Lessons: MDI High School Class of 2026 Graduates. Carrie Jones Jun 10, 2026 The Bar Harbor Story is generously sponsored by Paradis Ace Hardware. BAR HARBOR — Approximately 115 Mount Desert Island High School seniors received their diplomas, June 17, during the high school’s 58th commencement ceremonies. The ceremony in the Bernard Parady Gymnasium celebrated the accomplishments of the students and … Continue reading ‘Keep Moving Forward’: MDI Graduates Embrace the Next Chapter.