Roanoke Sound is a vital and expansive saltwater estuary that separates Roanoke Island from the barrier island beaches of Nags Head and South Nags Head in North Carolina's Outer Banks. As part of the Albemarle-Pamlico sound system, the second-largest estuary in the United States, it features shallow, brackish waters created by the mix of Atlantic Ocean saltwater and freshwater from river tributaries. This environment supports a rich ecosystem of forage and game fish. The sound is approximately 3-7 miles wide, bordered by the towns of Manteo and Wanchese on Roanoke Island to the west and Nags Head to the east, connected by the Washington Baum Bridge. Known for its exceptional saltwater fishing, it offers a protected playground for anglers using everything from skiffs to kayaks, with productivity that supports year-round angling opportunities.