Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
The Hurunui River thermal springs in the Hurunui district of New Zealand's South Island Canterbury region are natural sulphurous hot springs accessible via a hiking track through the Hurunui river valley in the foothills of the Southern Alps, offering backcountry hot spring bathing in a pristine subalpine environment. The track, passing through native beech forest and open river flats with views of the snowcapped Canterbury Alps, is a popular day and overnight tramping route from the Lewis Pass road. The Hurunui district's exceptional fly-fishing rivers, the Lewis Pass alpine environment, and the broad Canterbury high country of open tussock grassland and schist rock provide a quintessential South Island New Zealand natural setting.
Insider tip — Tucked along the Hurunui River valley in the South Island foothills, these springs emerge from fault lines at the edge of the Southern Alps. The cool mountain air contrasts sharply with the warm sulfurous waters, making year-round soaking especially invigorating. River access is easiest in late summer when water levels drop.