Bethells Beach Sand Dunes are the endangered dunes at Te Henga / Bethells Beach, on Auckland's west coast, within the Waitākere Ranges Regional Park. The dunes are home to native plants and dotterels, and Lake Wainamu is nearby.
The dunes are a place to walk and see native dune plants and birds, in a setting of coastal sand and lake. For someone visiting Westlake and Te Henga, the dunes sit within the regional park, close to the beach and the lake.