Get some fresh air at the Fall Field Day at the Stony Brook-Millstone Watershed Reserve in Pennginton from 9 am to 3 pm on Nov. 13. Help put the reserve’s trails in order for the winter. Plan to wear sturdy clothes and boots; dress in layers; and bring a bag lunch and water bottle. Tools and work gloves, as well as water and snacks, will be provided. Children under 12 must be accompanied by a parent or guardian throughout the day. Registration required. Contact Bay Weber at firstname.lastname@example.org or (609) 737-3735 x21.