Fig. 6: Marine rock platforms on the spur between the Orongorongo and Wainuiomata Rivers. The Holocene bench is at the bottom right corner. The lowest high level bench is considered to represent the Last Interglacial and to be about 100,000 years old. It is covered by several metres of scree and rises towards the crest of the Rimutaka Range which forms the sky-line of the photograph. There are two higher high level benches. The lower of the two is well defined and the higher on the extreme left hand side of the photograph less well defined. The higher is 250 m above sea level.