On April 20, 2007, Australian rescue crews boarded a catamaran drifting off the Great Barrier Reef and found her engine still running, a laptop still powered on, and a table set with food and utensils ready for a meal that was never eaten — but not one of the three experienced sailors aboard was ever found, then or since. Unlike most of the cases in this series, the Kaz II's disappearance was investigated by a formal coroner's inquest using modern forensic methods, GPS tracking, and eyewitness video. Even with all of that, the official verdict still couldn't say with certainty exactly what happened.
Background: Three Experienced Sailors, One Routine Voyage
On April 15, 2007, the Kaz II, a 9.8-meter catamaran, departed Airlie Beach in Queensland, Australia, on the first leg of what was planned as an eight-week voyage around northern Australia to Perth. Aboard were skipper Derek "Des" Batten, 56, and his neighbors, brothers Peter Tunstead, 69, and James Tunstead, 63, all three residents of Perth with substantial sailing experience. Batten in particular had recently completed courses in coastal navigation, radio operation, and first aid before setting out, and by every account available, the crew took maritime safety seriously.
The Discovery
On April 18, a helicopter spotted the Kaz II adrift near the Great Barrier Reef, and maritime authorities finally reached and boarded her on April 20, roughly 163 kilometers off Australia's northeastern coast. What they found matched almost none of the scenarios rescuers had prepared for. The yacht's engine was still running. Her sails were still up. A laptop sat open and powered on at the table, alongside food and utensils set out as if for a meal about to be eaten. Personal belongings throughout the cabin were undisturbed. Life jackets and an emergency locator beacon remained aboard, unused. The vessel's life raft, however, was missing. There was no sign of a struggle, and no evidence of foul play. Investigators noted that weather conditions had turned rough and windy in the days between the yacht's departure and its discovery, though the interior of the cabin showed no sign of having been thrown into disarray by heavy seas.
The Coroner's Reconstruction
What sets the Kaz II apart from most cases in this series is that Australian authorities pursued a full, formal coroner's inquest, drawing on GPS data recovered from the vessel and video footage found aboard to reconstruct the crew's final movements as precisely as possible. The state coroner's official report was notably candid about its own limits, stating he could not be fully definitive about the exact circumstances of the men's deaths. Based on the available evidence, the coroner's report proposed a specific reconstructed timeline: on the morning of April 15, near George Point, the crew had been hauling in a trailing rope and bundling it on the foredeck, a routine task, shortly before something went dramatically wrong. The most likely scenario the inquest identified involved one crew member going overboard, possibly while dealing with the rope or a tangled line, followed by the other two men attempting a rescue and also ending up in the water. Given the weather conditions and elapsed time, the search for survivors was called off within about a week, and none of the three men's bodies were ever recovered.
Ghost Ships at a Glance
| Case | Year | What Was Found | Leading Explanation |
|---|---|---|---|
| Mary Celeste | 1872 | Seaworthy ship, cargo intact, crew and lifeboat missing | Alcohol fume panic, crew abandoned ship prematurely |
| SS Ourang Medan | 1947 (disputed) | Alleged entire crew found dead, no visible cause | Existence of the incident itself is disputed |
| SS Baychimo | 1931–1969 | Abandoned cargo ship drifted the Arctic for 38 years | Repeatedly abandoned and reboarded amid ice hazards |
| Kaz II | 2007 | Yacht found sailing with engine running, crew of three missing | Man-overboard chain reaction, per official coroner's inquest |
| Flying Dutchman | 18th-century legend | No physical case; a folkloric spectral ship | Maritime folklore, not a documented event |
Theories and Explanations
Man-overboard chain reaction. This is the scenario the official coroner's inquest favored: one crew member fell overboard, possibly while handling a trailing line, and the other two, attempting a rescue, ended up in the water as well, all three ultimately lost before help could arrive. It remains the closest thing to an official explanation this case has produced.
Rough seas and sudden wave action. Weather conditions had deteriorated between the yacht's departure and discovery, and a sudden, powerful wave striking the vessel while crew members were on deck could plausibly account for one or more men being swept overboard without leaving visible damage to the cabin.
Navigational hazard near George Point. Some accounts of the case reference the possibility that the vessel came close to a sandbar or similar hazard near George Point around the time investigators believe the incident occurred, though this detail has not been established as a confirmed cause.
Foul play, explicitly ruled out. Unlike some historical ghost ship cases where piracy speculation persisted for lack of a formal investigation, authorities directly examined the Kaz II for any sign of struggle, theft, or outside interference and found none, allowing investigators to rule out foul play with far more confidence than was possible in earlier centuries.
The Curious Connection
The Kaz II brings this series into the era of genuine forensic capability: GPS tracking, recovered video, and a formal coroner's inquest that produced an actual, if appropriately hedged, official reconstruction of events. That's a meaningfully different standard of investigation than anything available to the Gibraltar court examining the Mary Celeste in 1872 or the bush pilots searching for the Baychimo in the 1930s. And yet, even with all of that modern investigative power, the coroner's own report couldn't offer full certainty, and news coverage at the time reached for the exact same historical comparison investigators of the Mary Celeste's crew might have recognized a century and a half earlier: a vessel found intact, provisioned, and utterly empty.
That persistence, the fact that a 2007 case investigated with modern forensic tools still gets compared directly to an 1872 sailing ship, is the question this series closes on. The final entry turns to the Flying Dutchman, a legend far older than any of the real cases this series has covered, one that never had an actual ship, crew, or coroner's report behind it at all — and asks why real disappearances like the Kaz II's keep getting pulled into the gravity of a myth that was never meant to describe an actual event in the first place.
Frequently Asked Questions
What is the Kaz II?
The Kaz II is a 9.8-meter catamaran found adrift off Australia's Great Barrier Reef on April 20, 2007, with its engine running and no sign of its three-man crew, who were never found.
Who was aboard the Kaz II?
The crew consisted of skipper Derek "Des" Batten, 56, and brothers Peter Tunstead, 69, and James Tunstead, 63, all experienced sailors from Perth, Western Australia.
What did rescuers find when they boarded the Kaz II?
The engine was running, sails were up, a laptop was still powered on, and food and utensils were set out on the table, but the crew, along with the vessel's life raft, were missing.
What did the official investigation conclude?
A state coroner's inquest, while stating it could not be fully definitive, proposed that one crew member likely fell overboard, possibly while handling a trailing rope, with the other two men lost attempting a rescue.
Were the bodies of the Kaz II's crew ever found?
No. Despite a search effort, none of the three men's bodies were ever recovered, and their exact fate remains officially unresolved.