Leadership Monroe County will celebrate its Class 31 graduation with the Leadership Spring GradFest, a community festival and alumni reunion to be held from 11 a.m. to 8 p.m. at Marathon Community Park, MM49. The family-friendly event features multiple food trucks, games, a bounce house, water slide, a classic car show, axe throwing booth, the Key West Police Mounted Patrol Unit and the Navy K-9 squad, all-day music, artists and non-profit exhibit booths, a raffle, class graduation ceremony and more. Admission $10; children 12 and under free.