| Te Unuhanga-a-Rangitoto / Mercer Bay | |
|---|---|
.jpg) View of Te Unuhanga-a-Rangitoto / Mercer Bay from the Mercer Bay Loop track | |
  Te Unuhanga-a-Rangitoto / Mercer Bay Location within the Auckland Region | |
| Location | Auckland Region, New Zealand |
| Coordinates | 36°58′44″S 174°28′05″E / 36.979°S 174.468°E |
| Ocean/sea sources | Tasman Sea |
Te Unuhanga-a-Rangitoto / Mercer Bay is a bay on the Auckland Region of New Zealand's North Island. It is located south of Piha and north of Karekare. The bay is surrounded by 60 m (200 ft)-high cliffs, which are the tallest in the Auckland Region.