In 1998, Tom and Eileen Lonergan’s scuba diving trip to Australia’s Great Barrier Reef turned into a real-life nightmare that inspired the movie Open Water and led to theories about a staged disappearance. The couple, both experienced divers from Louisiana, were accidentally left behind near the reef known for its marine life—and its dangers.
After completing two dives at St. Crispin’s Reef, a popular dive spot also called Fish City due to its abundance of sea life, they waited to be picked up for a third dive. Local fishermen reported unusually high shark activity that day. When their dive boat’s crew did a headcount before returning, they mistakenly assumed Tom and Eileen were still on board—a deadly oversight.
Two divers had jumped into the water moments before and were counted twice, confusing the crew. Meanwhile, two dive bags and missing equipment were overlooked. When the bus driver noted the Lonergans hadn’t appeared for their ride back, his concerns were downplayed, and the couple remained stranded in the ocean.
Days passed before the unclaimed bags were opened, revealing Tom and Eileen’s identifying belongings. A massive search of the Coral Sea involving aircraft and boats followed but found only empty water. Later, pieces of gear washed ashore, some damaged and likely from shark bites, but the bodies never surfaced.
More haunting were the personal diaries found in their hostel weeks later. Tom wrote about feeling his life was complete and that he was ready to die. Eileen expressed worry over Tom’s mental state, fearing his “death wish” might lead to tragedy and that she might be caught in it.
Speculations about a staged disappearance were quickly disproven since no financial accounts were accessed, and no insurance claims made. The evidence points to a tragic accident amidst shark-infested waters.
What happened to Tom and Eileen remains a gripping mystery with chilling diary entries that continue to fascinate and sadden those who hear their story. What’s your take on their fate? Share your thoughts and help keep their memory alive.
