Currently working the Nelson Marlborough region are these two helicopters from Central South Island Helicopters Ltd.
Above is the MD 500N NOTAR ZK-HDN3 (c/n LN080) piloted by Gary Oakes.
Below we see the Aerospatiale AS350 BA ZK-HGO2 (c/n 2181) piloted by Bryan Beck.
Report from Lord Nelson.
More on these two can be seen at :-