Plunge into soothing and healing natural hot pools and springs, writes Ewan McDonald

New Zealand's blown hot and cold over the millennia, so we have more than 100 thermal hot pools and springs – from the free to the luxurious. They'll help soothe your skin and muscles and maybe add years to your life.

Thorpe Talbot is not a name that resounds in Aotearoa's literary history, so full credit: in 1882 she published our first tourist guidebook, The new guide to the lakes and hot springs, and A month in hot water. Unfortunately, many of her not-to-be-missed attractions were blown up four years later in the Tarawera eruption. Not to worry, there are still plenty to soak in today.

Northland

A taonga of the north, Ngawha Springs has numerous mineral baths "used for centuries for relaxation as well as their therapeutic qualities and healing properties". Sounds like bliss, right? Well, after a year's makeover the spa is due to reopen at the end of April – perfect for the chilly season.

Great Barrier Island

With a four-and-a-half-hour ferry trip from Auckland, Kaitoke Hot Springs is a genuine travel bubble-buster. The all-natural hot pools are in a stream, reached by an easy walk from Kaitoke Hot Springs Track, following the Kaitoke Swamp, or a path along an ancient shoreline from Whangaparapara Rd. The pools are fringed by delicate umbrella ferns, with the main pool warm to tepid year-round, and hotter rock pools upstream.

Waikato

Wind down from cycling the Hauraki Rail Trail in one of several traditional wooden tubs at Te Aroha Mineral Spas. A bore sunk in the 1930s resulted in the world's only hot soda water geyser – Mōkena, named after the chief who gifted the land - which puts on a free show, erupting every 40 minutes.

For a free soak in one of Aotearoa's best-kept secrets, head to Kawhia Hot Water Beach on the west coast, to dig your own spa with stunning views. Not to be confused with…

Coromandel

… The better-known (and crowded) Hot Water Beach on the other side of the island. Time your visit around low tide and dig an oceanside spot that quickly fills with natural hot water. Our tip: go in the evening to get the beach, and stars, to yourself. For mineral-rich, geothermal waters without the sand, The Lost Spring (rediscovered in 1989) offers sophistication with a day spa, restaurant and cafe in the heart of Whitianga.

Bay of Plenty

You'll find hot salty ocean water in the iconic and recently refurbished Mount Hot Pools at the base of Mauao (Mt Maunganui). For a tranquil rural setting, try the Ōropi Hot Pools tucked away in the hills behind Tauranga. Fernland Spa is surrounded by native bush including beautiful punga trees, a peaceful retreat in the city's suburbs. Along the coast, Athenree Hot Springs and Sapphire Springs holiday parks are family-friendly options.

Rotorua

Thermal springs, boiling mud pools, erupting geysers, crater lakes… we could have filled the page with a small-print list of the hot stuff around Rotorua alone. In the middle of town, the famous Polynesian Spa offers acidic and alkaline natural mineral springs and luxurious spa therapies; take yourself away from it all, literally and figuratively, in rural Waikite Valley Thermal Pools, where the kids can enjoy the splash pool. Cruise or fly to more remote Lake Rotoiti Hot Pools. Get a whiff of Rotorua's trademark aroma at the fiercest attraction, the bubbling, aptly named and, er, fragrant Hell's Gate Geothermal Park and Mud Spa.

Taupō

Head to Otumuheke Stream at Taupō's Spa Thermal Park to soak under a waterfall or in the natural rock pools. It's free to enjoy, with recently upgraded facilities. Tokaanu Thermal Pools are situated on the lake's southern shores, worth a visit after hiking the Tongariro Crossing or skiing Ruapehu. Or "take the waters" like the global travellers of yore at Wairakei Terraces – the mineral enriched thermal pools are located below silica terraces and a waterfall.

Credit: NzHerald.co.nz