Which mountain range is known as the spine of New Zealand's South Island?

The Southern Alps is known as the spine of New Zealand's South Island due to its prominent and extensive nature running the length of the island. This mountain range stretches over 500 kilometers and is characterized by its dramatic peaks and glacial landscapes. The Southern Alps contain New Zealand's highest peak, Aoraki/Mount Cook, and plays a vital role in the country's geography, ecology, and climate.

The Southern Alps significantly influence weather patterns on the island, acting as a barrier that captures moisture-laden winds from the Tasman Sea, which results in lush rainforests on one side and drier conditions on the other. This distinction enhances the diversity of ecosystems and landscapes found throughout the region.

In contrast, the Remarkables are a smaller range located near Queenstown and do not span the entire South Island. The Tararua Range and the Kaikoura Range, while notable mountain ranges in New Zealand, are situated in different areas and do not comprise the main spine of the South Island like the Southern Alps do. Such geographical features contribute to the rich and varied outdoor experiences that draw tourists to New Zealand.