Standing wave clouds form patterns over Hedin Peak, Dart Valley, Rees-Dart Track, Mt Aspiring NP, New Zealand.

Standing wave clouds form patterns over Hedin Peak 2135m above the Dart Valley and Rees-Dart Track. In 5 days, we tramped the strenuous Rees-Dart Track for 39 miles plus 12.5 miles side trip to spectacular Cascade Saddle, in Mount Aspiring National Park, Otago region, South Island of New Zealand. This image was stitched from multiple overlapping photos.