1. Family Fun Fest: Sunday marks the official start of the annual Family Fun Fest, which offers activities for kids including pumpkin carving and more. Head to the event's website for more details. 2. Boston Harbor Fireworks: Boston harbor will be aglow with fireworks Saturday starting at 9 p.m. as a part of the Boston Arts Festival and the finale of Summer on the Waterfront. 3. This day in History: On Sep. 1, 1952, The Old Man and the Sea, the Pulitzer Prize-winning novelby Earnest Hemingway, is first published. 4. Greenway Carousel: Looking for something to do with the kids on Labor Day? Head to the grand opening of the Greenway Carousel today, which will cost $3 per ride for attendees. 5. Weather: This weekend is expected to be warm, with temperatures in the upper 80s, and rain showers in the forecast for both Saturday and Sunday.