Farm’s Future: Historic Grossman’s Farm opens at 1 p.m. tomorrow after more than three years of letting fields lie fallow. Visitors to the farm, which Nassau County purchased in 2009, can meet the new operator, buy bedding plants and learn about plans for the 5.8-acre farm. Follow Aisha al-Muslim’s Twitter updates @aishaalmuslim.
Long Run: Serious runners hit the pavement of Nassau County for the Long Island Marathon on Sunday. The event starts at 8 a.m. at Charles Lindbergh Avenue and ends at Eisenhower Park. For updates from the scene, check Paul LaRocco’s Twitter updates @paullarocco.
Open Firehouse: Lindenhurst village officials are inviting residents to tour the village fire department’s Main House on South Wellwood Avenue during an open house Sunday from noon to 6 p.m. Officials say the building is in decrepit condition and needs to be replaced. Check Nicholas Spangler’s Twitter updates @spanglernewsday.