Summary
In a remote part of New Zealand, lies a cold, dark and mysterious cave system with the potential to be the deepest dived cave in the world.
Where to watch
At a glance
Critics vs audiences
Only audience scores so far
Audiences 69GoodWatch 69
IMDb6.9
Letterboxd · 744 ratings3.4/5
Running time
1 h 27 min
Shorter than most documentaries, −9 min on the typical 96
typical 9687Half of all documentaries run 89–107 min.
Reach
Streams in 4 countries, rent or buy in 23 more
Released
2025
October 30, 2025
Last year
Genre
DocumentaryLanguage
English
Original language
Made in
- Australia
Directing · 1
- Jennifer Peedom Director
More like this
Same genre
More documentaries
- You Can See Everything (2026)
GoodWatch score 92 - Free Solo (2018)
GoodWatch score 81 - Miss Americana (2020)
GoodWatch score 80 - Searching for Sugar Man (2012)
GoodWatch score 80 - Citizenfour (2014)
GoodWatch score 86 - Man on Wire (2008)
GoodWatch score 83 - Flee (2021)
GoodWatch score 85 - Hearts of Darkness: A Filmmaker's Apocalypse (1991)
GoodWatch score 91