North Harbour is a large bay-style waterway branching northward from the main entrance of Sydney Harbour in New South Wales, Australia. Unlike the river-like character of Middle Harbour to its west, North Harbour presents itself as an open, expansive bay environment with a mix of sandy drop-offs, reef structure, and seagrass beds. Much of its water falls within the North Harbour Aquatic Reserve, established to protect critical habitat including seagrasses, marine plants, cunjevoi, and invertebrate communities. While it may not draw the same volume of fishing pressure as some of Sydney's more celebrated harbour locations, North Harbour has earned a solid reputation among local anglers for quality catches of luderick, silver trevally, and bream, making it a worthwhile destination for those who know where to look.