Chelsea Heritage Track is listed as a historic site in Chatswood, on Auckland's North Shore. It has a 4.0 rating on Google. The name points to the heritage walk around the Chelsea sugar works and the estate in nearby Birkenhead, so the track may connect to that history.
A good heritage track lets you walk through a place's past, with signs and views that explain what stood there and why it mattered. Expect a mix of paths, boardwalks and some slopes, so wear sturdy shoes and allow time to stop and read. Before you go, look up the history of the area, as background makes a walk far richer, and check where to park, whether the track is open and whether any parts are muddy or closed. Regulars know that mornings and weekday afternoons are quietest, that paths can be slippery after rain and that the harbour views are best on a clear day. Bring water, keep to the marked track, take your rubbish home and watch for other walkers and cyclists.
For anyone exploring Chatswood and the upper harbour, Chelsea Heritage Track is a walk worth researching before you set out.