US 17 continues north through Gloucester Point, which is home to the Virginia Institute of Marine Science. At the north end of the suburban community, the U.S. Highway meets the western end of SR 216 (Guinea Road). US 17 continues through a suburban area to Gloucester Courthouse, which is directly served by US 17 Business (Main Street). At US 17's northern intersection with the business route, the U.S. Highway becomes concurrent with SR 14 north to Adner, where the state highway heads west as Adner Road. At Glenns, the highway has an intersection with SR 198 (Glenns Road) and SR 33 (Lewis Puller Memorial Highway). US 17 and SR 33 head north together and cross the Dragon Swamp, which becomes the Piankatank River, into Middlesex County and assume the name Tidewater Trail. The two highways diverge at Saluda, into which SR 33 and US 17 Business head north as Gloucester Road. US 17 collects the other end of the business route (School Street) on the west side of Saluda.