Hackensack River Greenway, once known as the Hackensack RiverWalk, a is partially constructed greenway along the Newark Bay and Hackensack River in Hudson County, New Jersey, United States. The 18 mi linear park, which closely follows the contour of the water's edge where possible, runs along the west side of Bergen Neck peninsula between its southern tip at Bergen Point (40.64448°N, -74.14142°W), where it would connect to the Hudson River Waterfront Walkway, and the Eastern Brackish Marsh in the north (40.80187°N, -74.0268°W). The walkway passes through the contiguous municipalities of Bayonne (5.5 linear miles), Jersey City (5.6 linear miles), and Secaucus with a potential connection to a walkway in North Bergen. It passes through new and established residential neighborhoods, county and municipal parks, brownfields, industrial areas, commercial districts, and wetland preserves. While existing parks and promenades have been incorporated and new sections have been built there remain gaps. It will pass under sixteen bridges (some no longer in use) and cross over eight natural creeks. A section will run concurrently with the proposed Essex - Hudson Greenway and it will intersect with the proposed Morris Canal Greenway. Since 1988, in accordance with the public trust doctrine New Jersey law requires new construction built within 100 ft of the water must provide 30 ft of public space along the water's edge. After a preliminary assessment in 2015, in September 2022 the Lower Hackensack was declared a federal superfund site, triggering a process to remediate and restore the water and shoreline. The Hackensack River Greenway Through Teaneck is a National Recreation Trail which is not connected to the one in Hudson County.

Route and points along walkway

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