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Poor Knights

Isabella Cave (Scary Cave)

  • CertificationFull cave
  • Water temperature≈ 14–23 °C, varies with the seasonestimated, no reports yet
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Directions

Diving and fills

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The dive

Little is published about this cave; ask locally about its layout before you plan it.

Several routes inside the cave: only for qualified cave divers with the right equipment.
Source: Dive Now – A land of arches, caves and swim throughs ↗Source: Dive Now – Dive sites of the Poor Knights ↗
Profile and sections
Depth and profile
A real cave with entrances below the surface and shafts leading into the island, with several routes. Depths and length are not published.
Configuration
Cave gear with lights and your own line or reel (estimate).
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR
Through a dive centre or guide

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.

Source: Dive Now – A land of arches, caves and swim throughs ↗Source: Dive Now – Dive sites of the Poor Knights ↗Source: Skip's Underwater Image Gallery – Poor Knights 2 (2008) ↗

How to get there

Boat dive. Beyond daylight only as a qualified cave diver with the right equipment; ask a dive centre whether it will take your team there.

Plan your route ↗

Around Isabella Cave (Scary Cave)

FillsNo fill station known nearby
Other sites6

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Sources, sharing and disclaimer

Sources

Source: Dive Now – A land of arches, caves and swim throughs ↗Source: Dive Now – Dive sites of the Poor Knights ↗Source: Skip's Underwater Image Gallery – Poor Knights 2 (2008) ↗

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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): DOC (Department of Conservation) on the marine reserve, the websites of Dive Now (Sep 2026), Dive! Tutukaka and Global Dive, Divernet (Dec 2020), Seafriends (2007) on Taravana Cave, Ian Skipworth's underwater galleries (2008, 2013) for depths and Healthpoint on the chamber. No site has a published pin. These are boat dives into sea caves and arches with daylight in reach; Taravana and Isabella Cave are real caves. Certification and configurations are estimates.