(Switz Kill Road) and skirts the northern edge of Town of Berne Park. At the junction with the eastern terminus of CR 9 (Canaday Hill Road), NY 443 enters the hamlet of Berne, becoming the main commercial street, turning northward at a junction with Irish Hill Road. At the northern end of the north stretch, the route intersects with the western terminus of NY 156 (Berne–Altamont Road). NY 443 continues east along Helderberg Trail through Berne, soon turning southeast through the town. At the junction with Turner Road, the route bends southward, then turns eastward once again. Continuing east through Berne, NY 443 becomes a two-lane rural roadway, reaching the hamlet of East Berne. The route passes south of Warners Lake and intersects with Thacher Park Road (NY 910J) just south of that road's junction with NY 157A. Bending southeast out of East Berne, NY 443 passes south of a local airstrip, bending southeast through the rural community. At the junction with CR 303 (Pinnacle Road), NY 443 makes a short dart to the southeast and intersects with NY 85 (Delaware Turnpike). Dropping the Helderberg Trail moniker, NY 443 and NY 85 become concurrent along Delaware Turnpike, passing south of Helderberg Lake. NY 443 and NY 85 remain a two-lane residential road, crossing into the town of New Scotland. After passing the Letter S roads, NY 443 and NY 85 turn southeast, reaching a junction with New Scotland Road, where NY 85 turns eastward. NY 443 continues southward on Delaware Turnpike. Crossing through a wooded section of New Scotland, NY 443 soon bends southeast, reaching the northern terminus of CR 312 (Clarksville South Road). After a short distance east, through the residential neighborhood of New Scotland, intersecting with the western terminus of CR 301 (Tarrytown Road), which eventually becomes NY 396 in Bethlehem. Continuing east along Delaware Turnpike, NY 443 leaves the residential area, returning to the dense woods in New Scotland. Bending northeast through New Scotland, NY 443 crosses multiple residential roads that branch off, soon crossing into another residential area near the junction with CR 308 (New Scotland South Road). Entering the hamlet of Unionville, NY 443 crosses another junction with CR 308 (Feura Bush Unionville Road). NY 443 crosses under the Selkirk Subdivision of CSX Transportation, passing through the center of Unionville. The route bends northward and crosses into the town of Bethlehem, changing names to Delaware