DXs 5039 and 5402 cross Big Kowhai Viaduct to reach relatively high speed Canterbury Plains trackage after a long slog through the Southern Alps. The willows in the creek are brandishing their spring colours in this October morning view.
Trains on KiwiRail network from rail ferry terminal at Picton to Bluff. The Southern Alps are overcome at Arthurs Pass by the Otira Tunnel on 1 in 33 (3%) gradient. The longest rail bridge in NZ over the Rakaia River is near Christchurch.