| NZ Mud Polygons (Topo, 1:500k) | National Topographic Office | Land Information New Zealand | Creative Commons Attribution 4.0 International | Layer | Vector | 2868 | 136 | ||
| NZ Shoal Polygons (Topo, 1:50k) | National Topographic Office | Land Information New Zealand | Creative Commons Attribution 4.0 International | Layer | Vector | 7536 | 618 |