FSX – Scenery Balclutha Airfield. Welcome to Balclutha Airfield (NZBA), located 26 nm southeast of Dunedin, in the Southland region of New Zealand’s South Island. The airfield is right beside the Clutha river, and is popular with GA owners, and also agricultural topdressing operators operate from there. The airfield is also popular with the local radio controlled model aircraft club. By Lawrie Roache (South Pacific FlightSim Scenery).