 In the second entrance of Lake Grove, NY 347 intersects with the northern terminus of CR 97 (Nicolls Road), which continues south as an eight-lane arterial.NY 347 continues to the northeast into Brookhaven once again, passing north of Percy B. Raynor Memorial Park.Crossing power lines, the route enters the hamlet of Terryville, and soon into Port Jefferson Station, where it intersects with NY 112 (Patchogue Road).