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Golden Bay and Nelson

Nile River caves (Charleston)

Info · exploration

Information only: this cave is dived by a small group of New Zealand cave divers and expeditions, and we know no dive centre, guide or club that takes visitors.

  • Max depth37 m
  • CertificationFull cave
  • SpecialExperienced divers

Diving and fills

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Now at Nile River caves (Charleston)

Status
Closed

The dive

River dives in the limestone of the West Coast, against a flow too strong to swim against without a scooter.

Strong flow, and heavy rain floods the caves completely; expeditions then lose days.
Profile and sections

River dives in the limestone of the West Coast, against a flow too strong to swim against without a scooter.

A team of New Zealand cave divers including Kieran McKay has explored the caves for five years and found some 600 m of new passage. A kilometre away McKay explored another 300 m in a cave that probably connects to the system, until a rockfall blocked the way.

Practical: expedition work only; we know no provider.

Depth and profile
Dives to -37 m of about three hours · ~600 m of new passage explored
Configuration
Expedition dive with rebreathers (sidemount and backmount), trimix and scooters: the flow is too strong to swim against.
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR
  • Whole caveConfiguration unknown — research beforehand · doesn't decide who may dive
  • Whole caveGoes down to 37 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Experienced diversDepends on water level or swell

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

Limestone caves near Charleston on the West Coast. Access for divers: ask.

Plan your route ↗

Around Nile River caves (Charleston)

No provider in Golden Bay and Nelson yet

The caves here are listed as information only: we don't know a dive centre, guide or club yet that takes visitors, so you can't plan a trip here yet. Do you know one, or are you one? Let us know.

Something wrong, or do you know more?Depth, access, parking, the current situation: let us know.
Sources, sharing and disclaimer

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Oct 2026): Dive Pacific (an account from New Zealand's cave-diving community), Te Ara (the Encyclopedia of New Zealand), Wikipedia, Advanced Diver Magazine (Pearse Resurgence, 2007), the Department of Conservation (DOC), Heart of Biking and Health New Zealand (Christchurch chamber). Every cave is listed as information: we know no provider that takes visitors. Te Waikoropupū Springs is closed. Only the Riuwaka Resurgence has a pin (Wikipedia). ~ = estimate, ask = not confirmed.