Lucas Creek, Tidal estuary in Upper Harbour, New Zealand

Lucas Creek is a stream and tidal estuary of Upper Waitematā Harbour in Auckland. It begins as a freshwater stream flowing south-west from Fairview Heights, with a waterfall near Gills Road in Albany, then widens into a tidal inlet after joining the Ōteha Stream and passes Lucas Heights and Schnapper Rock before meeting Te Wharau Creek at Greenhithe.

The waterway transformed from a freshwater river into a tidal estuary between 12,000 and 7,000 years ago as sea levels rose. This geological change shaped the landscape that people have inhabited and used ever since.

The waterway held deep meaning for Māori people who relied on it for food like eels, crayfish, and flounder. The traditional names Ōkahukura and Kaipātiki still reflect this long connection between the stream and the local community.

The creek is tidal, so the water level and mudflats change through the day; plan viewing around low tide to see the estuary channels. The upper freshwater section near Gills Road in Albany includes the Lucas Creek Waterfall. River transport was the main link for Albany and Greenhithe until roads improved and the Kaipatiki ferry to Albany ceased in 1930.

During the 1860s, the area around the creek became known for illegal whiskey making operations, giving rise to a location called Whisky Cove. This hidden chapter in the creek's past remains a curious part of local history that few visitors realize.