Layer Estimates:

Layer: NZ Helipads (ID:0)
Count: 80
Extent:

XMin: 1186256.5127
YMin: 4846570.7558
XMax: 1939084.7516
YMax: 6146914.2038
Spatial Reference: 2193 (2193)

Layer: NZ Runways (ID:1)
Count: 3457
Extent:

XMin: 1181208.088
YMin: 4794136.4747
XMax: 2080459.0729
YMax: 6183490.7994
Spatial Reference: 2193 (2193)

Layer: NZ Airports (ID:2)
Count: 61
Extent:

XMin: 1181244.3962
YMin: 4848481.3224
XMax: 2034007.1614
YMax: 6119921.1526
Spatial Reference: 2193 (2193)