{
  "title": "The Ghost Ship of the Coral Sea",
  "dek": "When the catamaran Kaz II was discovered drifting off Queensland in 2007, it presented a chilling scene: a perfectly operational vessel with its crew completely vanished.",
  "slug": "the-kaz-ii-phenomenon",
  "canonical_url": "https://crimesandmyths.com/case/the-kaz-ii-phenomenon",
  "published_at": "2026-11-11T10:05:38.157Z",
  "updated_date": "2026-11-11T10:05:45.601000",
  "word_count": 1253,
  "direct_answer": "The Kaz II was a 12-meter catamaran found drifting off the Australian coast in April 2007 with its engine running and equipment active, but no crew. An official 2008 coronial inquest concluded the three crew members died by accidental drowning after falling overboard while attempting to retrieve fishing gear.",
  "key_facts": [
    {
      "label": "Incident Date",
      "value": "April 2007"
    },
    {
      "label": "Location",
      "value": "Great Barrier Reef, Australia"
    },
    {
      "label": "Missing Crew",
      "value": "Derek Batten, Peter Tunstead, James Tunstead"
    },
    {
      "label": "Official Finding",
      "value": "Accidental drowning"
    },
    {
      "label": "Inquest Status",
      "value": "Closed"
    }
  ],
  "faq": [
    {
      "question": "Was the Kaz II found to be a victim of foul play?",
      "answer": "No, the official 2008 coronial inquest concluded there was no evidence of third-party involvement or foul play."
    },
    {
      "question": "What evidence did the coroner rely on to explain the disappearance?",
      "answer": "The coroner relied on the logical reconstruction of a sequential accident involving a fallen fishing line and an unforced error by the crew in attempting to retrieve it."
    },
    {
      "question": "Why do some people suspect a mystery?",
      "answer": "The immaculate state of the boat, including running electronics and deployed fenders, led some to believe a second vessel had come alongside, though this was never proven."
    }
  ],
  "structured_block": {
    "timeline": [
      {
        "date": "15 April 2007",
        "event": "The Kaz II departs from Airlie Beach, Queensland."
      },
      {
        "date": "18 April 2007",
        "event": "A helicopter crew spots the vessel drifting off the coast."
      },
      {
        "date": "20 April 2007",
        "event": "The catamaran is intercepted, found to be unmanned."
      },
      {
        "date": "August 2008",
        "event": "The official coronial inquest concludes with a verdict of accidental death."
      }
    ],
    "persons": [
      "Derek Batten",
      "Peter Tunstead",
      "James Tunstead",
      "Michael Barnes",
      "Hope Himing",
      "Jon Hall"
    ],
    "evidence_status": "Official investigation ruled accidental death, though some family members expressed doubt due to the vessel's state.",
    "current_status": "Closed following coronial inquest.",
    "sources": [
      {
        "title": "Kaz II Wikipedia Entry",
        "url": "https://en.wikipedia.org/wiki/Kaz_II",
        "publisher": "Wikipedia",
        "tier": "secondary"
      },
      {
        "title": "Ghost yacht found off Australia",
        "url": "https://news.bbc.co.uk/1/hi/world/asia-pacific/6589623.stm",
        "publisher": "BBC News",
        "tier": "secondary"
      },
      {
        "title": "Family questions outcome of ghost yacht inquest",
        "url": "https://web.archive.org/web/20080813141527/http://www.news.com.au/story/0,23599,24122719-29277,00.html",
        "publisher": "News.com.au",
        "tier": "secondary"
      }
    ],
    "reviewer": {
      "completeness": 95,
      "narrative_quality": 90,
      "readability": 95,
      "direct_answer_standalone": true,
      "perspective_counterpoints": true,
      "honesty_framing": true,
      "verdict": "pass",
      "reasons": "The article is well-researched, balanced, and adheres to all stylistic and accuracy constraints."
    }
  },
  "entities": [
    {
      "name": "Derek Batten",
      "type": "Person",
      "sameAs": "https://en.wikipedia.org/wiki/Kaz_II",
      "description": "One of the three crew members missing from the Kaz II."
    },
    {
      "name": "Michael Barnes",
      "type": "Person",
      "sameAs": "https://en.wikipedia.org/wiki/Kaz_II",
      "description": "The Queensland Coroner who led the inquest into the Kaz II disappearance."
    },
    {
      "name": "Airlie Beach",
      "type": "Place",
      "sameAs": "https://en.wikipedia.org/wiki/Airlie_Beach",
      "description": "The port in Queensland where the Kaz II began its final voyage."
    }
  ],
  "place": {
    "name": "Great Barrier Reef, Australia",
    "address": "Queensland, Australia",
    "sameAs": "https://en.wikipedia.org/wiki/Great_Barrier_Reef"
  },
  "temporal_coverage": {
    "start": "",
    "end": ""
  },
  "claims": [
    {
      "claim_text": "Forensic examination found no evidence of foul play or third-party involvement on the vessel.",
      "category": "evidence",
      "agreement_status": "explained",
      "confidence": 0.95,
      "is_quotable": false,
      "quote_text": "",
      "quote_attribution": ""
    },
    {
      "claim_text": "The Kaz II was found drifting off the coast of Australia on 20 April 2007 without its crew.",
      "category": "timeline",
      "agreement_status": "explained",
      "confidence": 1,
      "is_quotable": true,
      "quote_text": "What they found was a bit strange in that everything was normal; there was just no sign of the crew.",
      "quote_attribution": "Jon Hall"
    },
    {
      "claim_text": "The fenders were deployed on the yacht, suggesting to some relatives that another boat had come alongside.",
      "category": "evidence",
      "agreement_status": "disputed",
      "confidence": 0.8,
      "is_quotable": true,
      "quote_text": "The fenders were out on their yacht, and the only reason you ever put them out is when another boat comes aside",
      "quote_attribution": "Hope Himing"
    },
    {
      "claim_text": "Derek Batten, Peter Tunstead, and James Tunstead were the three crew members missing from the Kaz II.",
      "category": "person",
      "agreement_status": "explained",
      "confidence": 1,
      "is_quotable": false,
      "quote_text": "",
      "quote_attribution": ""
    },
    {
      "claim_text": "Coroner Michael Barnes ruled that the three friends drowned in a freak accident involving a series of events including a fall and a swinging boom.",
      "category": "outcome",
      "agreement_status": "explained",
      "confidence": 1,
      "is_quotable": false,
      "quote_text": "",
      "quote_attribution": ""
    },
    {
      "claim_text": "The yacht's engine was running, food was on the table, and a laptop was turned on.",
      "category": "evidence",
      "agreement_status": "explained",
      "confidence": 1,
      "is_quotable": true,
      "quote_text": "The engine was running, the computers were running, there was a laptop set up on the table which was running, the radio was working... and there was food and utensils set on the table ready to eat",
      "quote_attribution": "Jon Hall"
    },
    {
      "claim_text": "The crew vanished after leaving Airlie Beach to sail to Fremantle.",
      "category": "location",
      "agreement_status": "explained",
      "confidence": 1,
      "is_quotable": false,
      "quote_text": "",
      "quote_attribution": ""
    }
  ],
  "sources": [
    {
      "url": "https://web.archive.org/web/20070423053735/http://news.yahoo.com/s/nm/20070420/wl_nm/australia_yacht_dc_2",
      "title": "SYDNEY (Reuters) - Australian rescuers were on Friday",
      "publisher": null,
      "tier": "secondary",
      "type": "archive"
    },
    {
      "url": "https://web.archive.org/web/20080813141527/http://www.news.com.au/story/0,23599,24122719-29277,00.html",
      "title": "A CORONIAL inquiry into the disappearance of three yachtsmen involved in Queensland's \"ghost ship\" mystery begins today ",
      "publisher": null,
      "tier": "secondary",
      "type": "archive"
    },
    {
      "url": "https://news.bbc.co.uk/2/hi/asia-pacific/6574547.stm",
      "title": "Emergency services in Australia have launched a search for the three-man crew of a yacht found drifting off the North Qu",
      "publisher": null,
      "tier": "secondary",
      "type": "news_article"
    },
    {
      "url": "https://news.bbc.co.uk/1/hi/world/asia-pacific/6589623.stm",
      "title": "The yacht was found drifting 150km (95 miles) offshore",
      "publisher": null,
      "tier": "secondary",
      "type": "news_article"
    },
    {
      "url": "http://police.qld.gov.au/News+and+Alerts/Media+Releases/2007/04/Search+continues+for+missing+men+off+Townsville.htm",
      "title": "",
      "publisher": null,
      "tier": "primary",
      "type": "court_document"
    },
    {
      "url": "https://theguardian.com/world/2008/aug/09/australia",
      "title": "The catamaran, Kaz II, found drifting off Queensland. Photograph: Cameron Laird/Rex FeaturesWhen the yacht Kaz II was fo",
      "publisher": null,
      "tier": "tertiary",
      "type": "other"
    },
    {
      "url": "https://en.wikipedia.org/wiki/Kaz_II",
      "title": "Locations1 Airlie Beach - departure port.2 Ship found without crew.",
      "publisher": null,
      "tier": "secondary",
      "type": "wiki"
    }
  ]
}