11 am – 4 pm Jolly Roger Scavenger Hunt Ages: 3 and upAttractions Family Free The Whaling Museum & Education CenterCold Spring Harbor
6 – 7 pm Club 8: Ridiculously Fun Social Skills Group for Teens Ages: 13 and upCommunity Family Club 8Plainview
6 – 9 pm Spooky Fest Ages: AllAttractions Craft & DIY Family Center for Science Teaching and Learning-Tanglewood PreserveRockville Center
All day Walt Whitman Birthplace Museum – Girl Scout Programs! Ages: 5 – 12Art Classes Family Walt Whitman BirthplaceHuntington Station
8 – 11 am Weekend FunRun Suffolk County 5k: A Make-A-Wish Fundraiser Fundraisers Blydenburgh County ParkHauppauge
8:30 am – noon Weekend FunRun Suffolk County 5K Run/Walk Ages: 5 and upFamily Fundraisers Sports Blydenburgh County Park Campground PlaygroundHauppauge
9:30 am – 12:30 pm Anthony’s Red Shoe FUNd Run 5K Run/Walk Ages: 5 and upFamily Fundraisers Sports Stony Brook University Student Activity CenterStony Brook
10 am – 4:30 pm Heritage Farm & Garden 2025 Fall Festival Ages: AllAttractions Community Family Heritage Farm & GardenMuttontown
10 am – 1 pm The Atelier at Flowerfield is offering a workshop “Painting on Fabric” on Saturday, October 4 Art Classes The Atelier at FlowerfieldSt. James
10 am – noon AMSEAS Beach Walk & Cleanup at Hallock State Park Animals Community Hallock State Park PreserveRiverhead
10 am – 3:30 pm Vines, Views & Velos: An Electric Ride Through Wine Country’s Finest Food & Drink Outdoors East End Bike ToursMattituck
10 am – 3 pm Pumpkin Festival – UMCPW Community United Methodist Church of Port WashingtonPort Washington
10 am – 4 pm Sculpture in the Garden: Sarah Sze at Landcraft Gardens Art Environment Landcraft Garden FoundationMattituck
10:30 am – noon Docent Tours in the Landcraft Garden Environment Outdoors Landcraft Garden FoundationMattituck