GlowWorm Caves with Underworld Rafting Adventure

Underworld Rafting

Join us on a magical journey of discovery in the awe-inspiring Ananui GlowWorm Caves with our award-winning Underworld Rafting adventure. Explore an untamed calcite paradise of stalactites and stalagmites in the eons-old upper levels of the enormous Ananui GlowWorm Cave system. Then float beneath surreal galaxies of GlowWorms and have fun tubing on the pristine Waitakere / Nile River. Return on our Rainforest Train to a hot shower and our welcoming Café’ in the Underworld Adventure Centre in Charleston.


  • One of the best and brightest GlowWorm displays in New Zealand

  • Stunning pristine Formations

  • Actively growing Stalactites & Stalagmites

  • Natural, unmodified cave - no boardwalks or electric lights

  • Informative & fun trip in the Untamed Natural Wilderness


Full Description

Underworld Rafting: Underworld Rafting is a superb 4 hour adventure in the enormous Ananui (Metro) Cave in the Paparoa National Park. On this adventure you are equipped with wet suits, wet suit socks, boots, gloves and helmet at our unique purpose build base in Charleston. After changing we leave base ready for an adventure and a short 10 minute drive brings us to our starting point.

Surrounded by the lush West Coast rainforest we board one of our Rainforest Trains at the start of the Ananui Canyon. 15 minutes journey takes us up to a splendid upper terminal right in the heart of the rainforest, where towering limestone cliffs and the sound of water tell a tale of water worn passages below.

Following the river upstream, a short walk is the perfect time to pick up tubes and to soak up the peaceful atmosphere. Leaving the river bed, 130 steps lead to one of the highest cave entrances. High above the Nile River we disappear into the cave system. Emerging into this hidden world we explore a calcite paradise of stalactites and stalagmites, crossing huge chambers, following a maze system of passages the group disappears deeper and deeper into the cave. The walk through the cave is enriched with illustrations, explanations and stories how the cave has formed, local caving history and interesting facts and figures.

Guided by the light of our torches the group descends into the bottom level of the cave where a dry underground river bed guides us to the edge of a subterranean lake. The excitment builds, and sitting on our tubes, linked together we float under a stream of twinkling blue-green glow worm lights, using only the natural light of the glow worms as a navigational aid. We exit the cave into a remote and untouched lost world.  A short tube down the gentle rapids of the Waitakere River brings us back to the train.

We supply all necessary gear for the trip and during the Underworld Rafting adventure we also take photos which will be digitally supplied to all visitors free of charge.

This is an award winning adventure, taking you to a place few are privileged to experience. Hidden in the dark and nestled in a breath-taking rugged rainforest landscape, this is an adventure which should not to be missed.


Complimentary Digital images

Meeting Point

The Underworld Adventure Center,

State Highway 6,

Charleston 7865

(20minutes Drive time from Westport or Punakaiki

Additional Information

Come with your swimmers for under the wet suit and a towel for a shower on the completion of your adventure.rnWe supply all clothing and equipment.

Cancellation policy

Full refund if cancelled up to 24 hours before activity starts.

Good weather is required for this experience. If we need to cancel due to poor weather, you'll be offered a different date or a full refund.

There is a minimum number of travellers for this experience. If the minimum isn't met and we need to cancel, we will offer a different date/experience or a full refund.

Our Products/Services


NZ$ 195

per person

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All bookings require a current COVID-19 Vaccine Pass to be shown on the day (for ages 12yrs 3mths and above)

Underworld Rafting

Join us on a Magical journey of discovery in the awe-inspiring Ananui GlowWorm Caves –
Underworld Rafting: Exp...Show More
From NZD
Duration: 4 Hours

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