Boulder Bank in Glenduan, New Zealand

Published Apr 29 2021 at 5:00 PM GMT
  • The Boulder Bank is an eight-mile (13 kilometers) stretch of boulders in the Nelson Harbour.
  • The geological origins of this unusual natural formation are not well understood, but it was likely caused by longshore drift.
  • Boulders were pulled off nearby headlands and formed the current structure over thousands of years.
  • This unique formation is composed of'granodiorite, the same type of rock from Mackay Bluff.
  • This structure creates a natural harbor, which was later cut to provide access for larger ships entering the region between 1903 to 1905.



  • Published Apr 29, 2021 5:00 PM GMT