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Unknown Journey documentary – exploring an abandoned mine

Published: October 12, 2023 - 13:17
Updated: October 12, 2023 - 13:18
Unknown Journey documentary – exploring an abandoned mine

Last Monday, 9th of October, Unknown Journey, a documentary film about the diving exploration of a flooded Greek mine, had its online premiere.

The Unknown Journey film introduces a group of Greek cave divers Addicted2h2o. They intend to explore a very interesting abandoned mine and venture deep into the flooded tunnels to discover their secrets. All their actions are recorded on video, so we can almost feel as if we are participating in the successive stages of exploration.

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Unknown Journey

Exploring the mines in Lavreotiki

During the exploration of ten mines in the Lavreotiki region, the team came across interesting information provided by the few remaining former miners in the area. Among these were reports of an abandoned engine and other equipment left in the flooded mine.

Unfortunately, the searches made by the group in the archives of the Lavrion Technological and Cultural Park were of no use. The available bibliography also did not help. In order to get answers to their questions, the divers decided to go deep into the flooded tunnels. The Addicted2h2o team set themselves three main goals: locate the lost engine, map the underwater passages and find Sklives’ well.

The mentioned well is one of the eleven most historic mining wells that have remained in the Lavreotika area. Thanks to the engineering plans that the team found in the archives, it is known that the Sklives well goes as deep as 202 m (663 ft).

Unknown Journey

Unfortunately, as it is impossible to reach the well from the surface, another route had to be found. The search therefore involves carrying equipment through the dry tunnels of a nearby mine for a distance of around 1,000m. After that, a further route has to be taken underwater, and as access to this site is complicated, the whole thing is a major challenge.

The footage collected by the Addicted2H2O team was used to make a film. Lasting 38 min, the documentary was made in 2022 in collaboration with 8Film. Unknown Journey is undoubtedly a unique insight into the interior of a flooded Greek mine. We learn many interesting things from it, from the mine’s last day of operation to a first-hand account of the many challenges and dangers the team faced during the making of the footage.

The full-length documentary has been screened at numerous film festivals around the world. The production has received a number of awards and accolades and is now finally widely available on YouTube.

Unknown Journey documentary


  • London Movie Awards (Best Short Documentary)
  • Int. Film Awards (Silver Award Short Doc.)
  • AIMAFF (Honorable Mention)
  • Lane Doc Fest (Official Selection)
  • West Side Mountains Doc Fest (Official Selection)
  • Thessaloniki Free Short Festival (Official Selection)
  • Hollywood Gold Awards (Honorable Mention)
  • New York Movie Awards (Honorable Mention)
  • Florence Film Awards (Official Selection)
  • Paris Film Awards (Official Selection)
  • SEE Film Festival (Official Selection)
  • Golden Short Film Festival (Official Selection)

Addicted2h2o Expedition Team:

Erikos Kranidiotis, Stelios Stamatakis, Hercules Katsaros, Akis Palis, Vasilis Stergiou, Kostas Efthimiadis, Ioannis Exarchos

XDEEP Exploration Support Program supports explorers, scientists, and environmentalists around the globe in their efforts to explore, preserve, and deeper understand the underwater world. Since its launch in 2014, XDEEP Exploration Support Program has supported over 30 global projects.

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About author

Tomasz Andrukajtis
Editor-in-chief of the DIVERS24 portal and magazine. Responsible for obtaining, translating and developing content. He also supervises all publications. Achived his first diving certification – P1 CMAS, in 2000. Has a degree in journalism and social communication. In the diving industry since 2008.
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