The southern Alps are in New Zealand, part of the Australian Continent

The border between the Central Alps and the Southern Limestone Alps is known as the Periadriatic Seam.

The Southern Alps are actually located in New Zealand. They are located on New Zealand's South Island. The tallest peak of the Southern Alps is Mount Cook.

The Southern Alps run up the west coast of the South Island.

Well there are the french southern alps and the European southern alps but the most likely one would be the southern alps along the west coast of the south Island in new Zealand. The highest point is Aoraki/mount cook.
In the South Island of New Zealand