Lake Wainamu

Lake Wainamu is the largest natural lake in the Waitākere Ranges, formed by the damming of deep stream valleys by sand blown inland from the coast. It's tucked about two kilometres inland from Te Henga / Bethells Beach, and is the only landform of this type in the region. The lake is up to 12 metres deep and is fringed by wetland that extends into shallow arms of the lake in several places. 

Large mobile sand dunes separate the lake and beach. Regenerating native vegetation covers steep hillslopes around the rest of the lake. Kānuka dominated scrub is common on the northern hillslopes while kauri, podocarp, and broadleaved forest is regenerating on the southern hillslopes.

Start your journey by parking at the Te Henga Walkway and choosing your path to the lake—either wade through the cool, shallow stream or take on the sandy route over the dunes, which only get more impressive as you go. As you crest the final ridge, Lake Wainamu reveals itself in all its glory, a serene body of water that’s perfect for a refreshing swim. The lake’s loop track offers an easy hour-long walk around the water, with a hidden waterfall at the far end that’s ideal for a peaceful picnic.

After a day of adventure, make a quick pit-stop at the Bethells Beach Café for a well-deserved ice cream or slice of homemade cake.