Northern Wairoa Golf Club
Northland · 18 greens mapped
Read these greens →
The greens here
18 greens at Northern Wairoa have been mapped from the national LiDAR survey — 7,651 m² of putting surface altogether, with a median green of 399 m². That is within a few percent of the national median of 397 m² — typical for New Zealand.
- Steepest green: hole 7, averaging 4.8% and falling south.
- Flattest green: hole 17, at 1.3%.
- Most internal fall: hole 1, 1.37 m between its low and high point.
- Largest green: hole 8, 772 m².
Every green
| Green | Size | Fall | Avg grade | Runs off to the |
|---|---|---|---|---|
| Hole 1 | 538 m² | 1.37 m | 4.6% | north-west |
| Hole 2 | 452 m² | 1.14 m | 3.7% | south-west |
| Hole 3 | 323 m² | 0.85 m | 3.8% | south |
| Hole 4 | 310 m² | 0.63 m | 1.8% | west |
| Hole 5 | 355 m² | 0.55 m | 2.0% | south-east |
| Hole 6 | 396 m² | 0.87 m | 2.8% | north-west |
| Hole 7 | 328 m² | 1.12 m | 4.8% | south |
| Hole 8 | 772 m² | 1.31 m | 4.0% | south-west |
| Hole 9 | 478 m² | 1.00 m | 2.5% | south |
| Hole 10 | 281 m² | 0.49 m | 2.3% | north-east |
| Hole 11 | 463 m² | 0.67 m | 1.9% | south-east |
| Hole 12 | 401 m² | 0.99 m | 3.6% | west |
| Hole 13 | 389 m² | 0.59 m | 2.5% | west |
| Hole 14 | 499 m² | 0.68 m | 2.1% | north-west |
| Hole 15 | 373 m² | 0.50 m | 1.8% | south |
| Hole 16 | 430 m² | 1.01 m | 4.3% | north-west |
| Hole 17 | 379 m² | 0.81 m | 1.3% | south-east |
| Hole 18 | 486 m² | 0.98 m | 4.3% | south |
“Fall” is the height difference between the lowest and highest point of the putting surface. “Avg grade” is the best-fit plane across it — a green can average 2% and still have a shelf on it, which is what the app shows and a table cannot.
Where these numbers come from
Heights come from Land Information New Zealand’s 1 m LiDAR elevation survey (Northland, 2024), published openly under CC BY 4.0. Green outlines and hole numbers come from OpenStreetMap under the Open Database Licence. Slope uncertainty on this course works out at ±0.15%.
Slope is measured. Break is modelled — the read in the app is a physics simulation of a ball rolling over the measured surface, and it knows nothing about grain or moisture. The survey predates any green rebuilt since 2024. More about how this is made.