Important Note: the track is closed due to a bridge washout near the car park. This is a long-term event.
As you drive into Te Henga on Bethells Road, you will see the car park for the Lake Wainamu Track on the left, a bit over one km before the beach car park. Look immediately to the right for a turnoff, which will take you to the start of the access to Te Henga Walkway and over to O’Neill Bay. You can drive to the end of this accessway.
The track crosses a short bridge over the Waitākere River, heads through some farmland below Taumaiti (the big hill to the north), and then climbs 80 metres up the side of the hill to a viewpoint above Te Henga and the river. There is a short forest regrowth section before it opens again above Waitākere Bay, including views north along O’Neill Bay. The track then heads down to the dunes behind O’Neill Bay, with a short deviation onto the beach. Spring and early summer are particularly nice for this walk, with much of the native scrub and trees in flower.
Allow about 40 minutes to get to O’Neill Bay.