Kawhia's hot water beach
Almost everyone has heard of the Coromandel's Hot Water Beach but the same can't be said for Kawhia's hot water beach. It's accessed via a long no-exit road on the Waikato's remote west coast. The owner of Kawhia's Beachside S-Escape Holiday Park has set up a couple of posts in the sand to aid in locating these elusive springs, which can be accessed only about 1.5 hours each side of low tide. Most of Kawhia's accommodations supply spades to take to the beach, as some intensive digging is required to scoop out a shallow hot pool in the fine black, volcanic sand. A GPS unit will reduce the "needle in a haystack" feeling on this sweeping stretch of beach.
Ruapirau Hot Springs
The southern section of the Kaweka Forest Park is home to one of the North Island's most remote hot springs. A bathtub has been flown into a ravine that harbours the modest Ruapirau Hot Springs. Only a handful of people have been to these springs, which don't even appear in scientific records. It took me two years of sleuthing to track them down. They are destined to remain little-visited as canyoneering skills are required to reach them. These springs have been named after the Ngati Ruapirau, an early tribe in the area.
Cow Stream Hot Springs, Hanmer Springs
The South Island's Cow Stream Hot Springs is relatively unknown because from 1862 to 2008, it was located on a high-country sheep and cattle station. The government bought this land and turned it into the St James Conservation Area, which covers 78,000ha of native forests, alpine tussocklands, rivers, lakes and formerly inaccessible geothermal areas. The chain of delightful stream-side hot pools can be reached by foot, mountain bike or horseback. Permission for four-wheel drive access can be obtained from DoC (only during the warmer months).
Sally Jackson is the author of Hot Springs of New Zealand. The newly revised edition contains detailed information on more than 100 thermal springs (almost half of them are free).