Brisbane Water is a wave-dominated barrier estuary nestled in the Central Coast region of New South Wales, approximately north of Sydney. Stretching roughly 18 kilometres from its origin at the confluence of Narara and Coorumbine Creeks southeast of Gosford, the waterway flows southward to its mouth at Broken Bay, about 7 kilometres from the Tasman Sea at Barrenjoey Head. Covering approximately 6,661 acres with over 67 miles of shoreline, this productive estuary is flanked by Brisbane Water National Park to the west and Bouddi National Park to the east. The connected basin of Kincumber Broadwater lies to the east of Davistown, forming part of the same tidal estuary system. Numerous towns and suburbs line the shores, including Gosford, Woy Woy, Ettalong Beach, Saratoga, Davistown, Empire Bay, Hardys Bay, and Wagstaffe, making the water easily accessible from multiple directions. The total catchment area spans approximately 165 square kilometres, and the estuary contains St Huberts Island among other features. Brisbane Water is a highly regarded estuary fishery, consistently producing dusky flathead, surf bream, and Australasian snapper as its standout target species.