Cave Stream

Just a short drive from Hanmer Springs, Cave Stream is a natural wonder that invites you to explore a 594-metre-long limestone cave carved by an underground river. This is not your typical walk-in cave – you'll be wading through chilly water, scrambling over rocks, and marvelling at the sculpted formations by headlamp. It’s an exhilarating, semi-technical adventure that feels like stepping into the pages of a fantasy novel. The crystal-clear water and eerie silence broken only by dripping water make it a truly memorable experience for those seeking a dose of wild New Zealand.

Highlights & What to See

• Underground River Walk: Wade through knee-deep water in the cave, surrounded by ancient limestone formations and glowworms twinkling above.
• Natural Rock Bridges: The cave features a dramatic collapse where the stream flows under a massive rock bridge – a perfect photo stop.
• Fossil Imprints: Look closely at the cave walls; you'll find traces of ancient marine fossils embedded in the limestone.
• Glowworm Grotto: In the darker sections, tiny glowworms create a starry ceiling effect that is simply magical.

Suggested Time to Spend

Allow 1 to 2 hours for the full cave walk, including time to gear up and enjoy the surroundings. The cave is short but requires careful footing, so take it slow. Combine it with a visit to Hanmer Springs thermal pools or a hike on the nearby Conical Hill for a rewarding half-day outing.

Nearby Areas Worth Combining

• Hanmer Springs Thermal Pools & Spa: Soak tired muscles after the chilly cave adventure in these famous mineral pools.
• Conical Hill Walk: A short, steep hike offering panoramic views of the Hanmer basin – great for a pre-or post-cave leg stretch.
• Waiau River: Enjoy kayaking, jet boating, or a peaceful riverside picnic just minutes from the cave.
• Hanmer Forest: Explore mountain biking trails or gentle forest walks through towering redwoods and pines.

Please check official sources for current details.