Due to time constraints we could not map every single open coast beach around Aotearoa (although we tried!). We tried to make sure that all open coast beaches fronting urban areas, area’s of cultural significance or areas well known for coastal change were mapped, but there will be some spots we need to fill in (use the contact us page to let us know). Some urban areas with extensive seawalls have not been mapped (as there has been little change) and we have left out rock cliffs that have eroded too slowly to be clearly detectable in historical images. In future work, funding pending, we hope to map harbour coasts and areas where rivers meet the coast.