Most visitors to Te Henga never make it past the main beach at Bethells, which means O'Neill Bay remains a local secret despite being a twenty-minute walk away. The track follows the coast over a small headland, through patches of spinifex and ice plant, then drops to a beach that mirrors its northern neighbour in everything except visitor numbers. The sand is the same volcanic charcoal, the surf breaks with the same westcoast power, but you'll likely share it with a fraction of the people.
“The only Auckland west-coast beach where a short coastal walk delivers equivalent surf quality with dramatically reduced crowds compared to the adjacent main beach.”
Aerial view of turquoise tropical bay
The bay curves in a wide arc, backed by low dunes rather than dramatic cliffs. Lake Wainamu sits just inland, its freshwater separated from the sea by a narrow sand barrier that shifts with storms and tides. After a long beach walk in salt and wind, the lake offers calm water for rinsing off—though it's tannic brown from surrounding wetlands, not the turquoise you might expect. The combination of ocean and lake creates an ecological edge zone where oystercatchers and dotterels work the tideline.
Surf conditions follow Bethells' patterns but with fewer boards competing for waves. The beach faces southwest, catching the same Tasman swells that light up the main break. Rips are present and powerful—this is west-coast water, demanding respect and experience. Late afternoon light turns the wet sand to bronze, and the Waitākere Ranges behind you go purple in the fading sun. The walk back to the carpark is always longer than you remember, but you'll have the satisfaction of finding something most tourists miss.