Rāpaki is a small settlement on the winding inner eastern shoreline of Whakaraupō (Lyttelton Harbour). From the beach of its wide shallow bay there is a view across the blue grey water to Ōtamahua (Quail Island) and westward toward the mudflats at the head of the harbour. Rāpaki is home to one of Te Rūnanga o Ngāi Tahu's five Banks Peninsula papatipu rūnanga, Te Hapū o Ngāti Wheke.