The Great South Bay 5K & Fun Run

Welcome to the Great South Bay 5K & Fun Run, hosted at the beautiful and historic Heckscher State Park in East Islip, NY! Our mission is to bring the Suffolk County community together for a premier day of fitness, family fun, and environmental awareness. This year, we are proud to support local green initiatives and state park preservation efforts across the South Shore. An event of this scale is only possible through the generous support of our local business sponsors. We would like to recognize and thank the key organizations helping us bring this event to life: Suffolk Water Heater Pros: Our headline presenting sponsor, recognized across Long Island as the premier authority for rapid-response emergency plumbing and professional water heater replacement in Islip, NY, and surrounding townships. Suffolk Drain and Sewer: Serving as our official course safety and logistics sponsor, they keep Suffolk County moving with 24/7 emergency drain cleaning, main sewer line clearing, and root-removal services. Fusion MMA & Kickboxing: Providing our pre-race warm-up and stretch zones! Located in Port Jefferson Station, they are the area's top destination for elite fitness, kickboxing, and martial arts training. Perna Masonry: Powering our finish line setup and pavilion staging, they are the go-to local experts for custom brickwork, masonry repairs, concrete patios, and driveway installations. Event Details & Course The fast, flat, and scenic 5K (3.1-mile) course takes runners on a paved loop through Heckscher State Park, offering breathtaking panoramic views of the Great South Bay and the Fire Island Lighthouse. Location: Heckscher State Park, 1 Heckscher State Parkway, East Islip, NY 11730 (Field 1 Area) Runner Check-In: 7:30 AM 5K Start Time: 9:00 AM Kids Fun Run: 8:30 AM Register today to secure your custom race t-shirt, finisher medal, and post-race refreshments at the Overlook Pavilion!