Sulphur Lake, New Zealand

Geysers and Glowworms – New Zealand’s Thermal Wonderland

When we first arrived in New Zealand I wrote that it felt oddly familiar, like the UK with warmer weather and different accents but over the last three weeks as we’ve criss-crossed our way down the North Island this initial impression has faded almost completely. As we’ve hiked up volcanic islands, soaked on hot-water beaches, wandered around steaming orange lakes and explored underground caves lit up with glowworms I’ve begun to feel like I couldn’t be any further away from the UK – in fact, at times I’ve felt like I could  be on an entirely different planet.

Wai-O-Tapu, New Zealand

The Glowworm Caves

After our stay in idyllic Raglan we headed a few hours west in search of ancient underground caves and glowworms. Visiting the caves in Waitomo was one of the things I was most looking forward to during our stay in New Zealand – and I wasn’t disappointed. We opted to visit three caves in one day; our trip started with a two hour walking tour of Ruakuri, followed by a visit to Aranui and ending with the highlight – a boat trip through the glowworm cave.

Waitomo Caves, New Zealand

The limestone caves were formed over billions of years and as you venture down into their cool darkness your eyes adjust to make out the shapes of stalactites and stalagmites protruding amongst great columns of rusty, brown, red and yellow rock – I felt as if I’d stepped into an alien lair. We wound through tall tunnels, listening to the echoes of our footsteps, the distant rumbling of underground waterfalls and the muted screams of black water rafters. At one point we stood 45 metres underground in the blackness as we encountered our first glowworms, which are actually flies in their larvae stage lighting up to attract insects, which then get stuck in their dangling threads.

New Zealand Glowworm Caves

It was difficult to get good photos of the caves and near impossible to capture on camera the other-wordly feel of the place, but we managed to get a few half-decent shots of some rock formations. When you look closely these begin to take on surreal shapes, the same way staring at the clouds will cause them to rearrange themselves into pictures. On one wall of the cave we saw an Indian Chief’s face hanging neatly next to a bunch of cauliflower in cheese sauce, while in another corner Snow White lined up with her seven dwarfs next to a half-burned candle of waxy white limestone. You could spend hours staring at the shifting pictures in the cave walls.

Stalactites and Stalacmites in the Glowworm Caves, New Zealand

As we boarded the boat in the glowworm caves I wasn’t sure we could be any more awed – but I was wrong. We floated in silence beneath a ceiling of black studded with bluish-white pinpricks. To begin with the experience was reminiscent of that first perfect night sky I saw kayaking in the Bay of Islands. Gazing up at the glowworms became stranger though; my eyes began to play tricks on me and I felt the blackness was a hole to another universe, as if the glowworms were suspended just above me and I could fall into the dark canopy beyond if I looked hard enough. Unfortunately cameras aren’t allowed in the glowworm cave so you’ll have to use your imagination to picture them or go and see for yourself.

Boat Trip Through the Glowworm Caves, New Zealand


Wai-O-Tapu – The Thermal Wonderland

After our trip to the caves we set off for Rotorua, one of the most thermally active areas in New Zealand. No sooner had we arrived than our hostel owner was telling us stories of people who’d been boiled alive by the 100 degree water in the nearby lake. We were also instantly assaulted by the stench of rotten eggs and badly burned popcorn; sometimes you almost got used to the smell until a gust of wind carried a particularly viscous wave of it straight up your nostrils. In the end we decided to embrace the stench and head straight for the stinking geysers and sulphur lakes at Wai-O-Tapu, the Thermal Wonderland.

Sulphur Lake, New Zealand

Lady Knox Geyser, New Zealand

We arrived in time to watch the Lady Knox Geyser erupt, as it does every day at 10.15am. Just as I was wondering how the geyser knew to erupt exactly every 24 hours a ranger solved the mystery by dumping a load of “washing powder” into the hole, causing the tension between the scolding liquid beneath the cooler surface water to mingle and explode out the top – here’s the result:

The day got weirder as we wandered around the park, encountering steaming lakes bubbling with orange and green-tinged sulphur and chemicals. These pools were surrounded by deep craters which were all named, obviously, after the devil: we saw the ‘Devil’s Hole’, the ‘Devil’s Inkpots’ and even his bath. To me, rather than hell, the place looked prehistoric, like scenery from the film 10,000 Years BC; you could just imagine dinosaurs lumbering out of the forest and wading around in the lakes.

Devil's Bath, Wai-O-Tapu

Crater, Wai-O-Tapu, New Zealand

Thermal Lake, Rotorua New Zealand

Mud Pools, Wai-O-Tapu, New Zealand

To top off our stay in Rotorua we spent an evening at the Polynesian spa, where we finally relaxed in baths heated by the thermal springs. We even started to forget that everything stunk of rotten eggs – well, almost.

Amy in the Polynesian Spa   Andrew at the Polynesian Spa, New Zealand






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  • Beast
    Posted at 11:27h, 24 March Reply

    What a brilliant post, really enjoyed reading about these places, particularly about the magical glow worm caves. You are so lucky to have these experiences. Amazing photos as well, look forward to the next instalment! X

    • Amy
      Posted at 23:02h, 24 March Reply

      Thanks Beast, it was a shame not to be able to get any of the glowworms but in a way not being able to take pictures allowed us to just focus on the experience instead. Wait till you see the pictures from Mount Doom!

  • Patti
    Posted at 20:41h, 24 March Reply

    Beautiful photos of the caves and such! Great fun, so happy for you!

    • Andrew
      Posted at 21:38h, 24 March Reply

      Thanks, these were a bit trickier to get good photos of but that may be down to not knowing what to do with regards camera settings. The caves were spectacular though.

  • Charlie
    Posted at 18:16h, 30 March Reply

    Honestly, the more you post about New Zealand the more I want to visit. The country never really interested me that much but clearly there’s so many amazing natural wonders to see there I’ve never heard about. Wai-O-Tapu really does look other-worldy!

    • Amy
      Posted at 05:11h, 31 March Reply

      It really is amazing and even more so now we’re in the South Island; there are glaciers, mountains, volcanoes, rainforests and beaches!

  • northierthanthou
    Posted at 10:19h, 21 December Reply

    It certainly looks interesting enough, but I think I’ll let y’all handle the smell for me. Glad you took your camera. 😉

    • Amy
      Posted at 04:24h, 22 December Reply

      Yep, the smell certainly wasn’t great – lucky it was beautiful enough to make up for it!

  • Riley Dixon
    Posted at 08:00h, 01 August Reply

    Wow those photos are amazing! I NEED to visit when I go to New Zealand! Thanks for sharing!

    • Amy
      Posted at 08:55h, 01 August Reply

      Thanks Riley, yep, don’t miss the caves they are epic!

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