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Book Review: Shadow Divers by Robert Kurson

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In the first in a new series of book reviews, Fred Lockwood reviews Shadow Divers by Robert Kurson…

Imagine you are a scuba diver inside the devastated wreck of a WWII German U-Boat. You are 65 nautical miles off the east coast of America, in the Atlantic Ocean, at a depth of 230 feet and breathing compressed air. (This is a time before rebreathers and trimix!) It’s cold, dark and you are alone. The slightest movement, and your own bubbles, stir up sediment that has taken decades to accumulate – and will take hours to settle. In the gloom there are dangling wires and cables waiting to ensnare you, delicately balanced debris to trap you and jagged edges everywhere. Outside the hull there is a current eager to wash you into the void.

The above scenario is not fiction but fact. In Shadow Divers Robert Kurson narrates the true story of how two deep wreck divers, John Chatterton and Richie Kohler, commit and risk everything to identify the mystery wreck and explain its demise. However, Shadow Divers is more than just a diving yarn. It raises issues about the ethics of diving on war graves, how personal perspectives influence our lives and the fallibility of official historical records.

Kurson documents the strong desire amongst divers, like Chatterton and Kohler, to claim artefacts from wrecks – even putting their lives at risk in doing so. Indeed, several of the photographs in the book show divers displaying items recovered. However, despite being informed that the German government regard any U-Boat wreck to be “tombs of a seaman’s grave” (p.148), they continued searching for artefacts to identify it; the search becomes an obsession and one they seek to justify.

The chapters devoted to the main players in the story provide insights into their character, the principles by which they live their lives and how they changed over the years of exploration. For some the path leads to self-destruction, to others greater self-awareness and being able to live with their actions. These men become unofficial guardians of the wreck as they deliberately avoid searches that could disturb the remains of long dead sailors whilst at the same time trying to identify them. It is difficult to disagree with Kurson when he says exploration of the wreck evolved from “an artefact site into a moral obligation” (p. 287).

The task of identifying a wreck is typically guided by official records, testimony and the word of experts. But what if these are wrong? What if these accounts are based on sloppy and erroneous assessment? German and Allied records indicated that no submarine could be where it was discovered! Kohler’s conclusion, that “- no government or navy or professor or historian has a clue – that it’s even here” (p.185) challenged historical record. In narrating the search Kurson shares the highs and lows of their painstaking investigation and personal challenges as the project impacted their lives. It is a testimony to their tenacity that they didn’t merely accept the official government records and the views of experts.

If I have any criticism it would be a small one. It would be the space devoted to accounts of diving on the Andrea Doria – the Italian cruise liner that collided with the Stockholm and which sank with the loss of fifty-one lives. Whilst it served to reinforce the danger of deep wreck diving, and exemplified the exploration techniques used later, it detracted from the main story.

As a recreational diver I found the accounts of diving inside the submarine compelling. Kurson takes you down to the wreck and inside it. His description of the anaesthetic effect of nitrogen narcosis, running out of air, panic attacks and sheer bad luck that claimed the lives of other divers are, fortunately, outside my experience. However, the thoroughness of the research they conducted would impress any PhD examiner. Shadow Divers is an incredible story.


Robert Kurson obtained his bachelor’s degree in philosophy from the University of Wisconsin and his law degree from Harvard Law School. He has worked as a journalist and writer in the USA.

Other books written by Robert Kurson include:

  • Crashing Through (2007) New York: Random House
  • Pirate Hunters (2015) New York: Random House
  • Rocket Men (2018) New York: Random House

They are available via Amazon and his website where he can also be contacted: www.robertkurson.com

  • Shadow Divers (2004) New York: Random House by Robert Kurson
  • ISBN 0 375 76098 9           (388 pages)

Find out more about Professor Fred Lockwood, who is also a published author, at www.fredlockwood.co.uk.

Dr Fred Lockwood is Emeritus Professor of Learning and Teaching, Manchester Metropolitan University, UK. He is also a PADI Master Scuba Diver and dived in the waters of Central America and Africa, the Middle East and South East Asia, Australasia and the Pacific Islands. Follow Fred at www.fredlockwood.co.uk.

Marine Life & Conservation

I.CARE, SSI Blue Oceans, and Mares Team Up to Remove Over 36,000 Pounds of Debris from the Florida Keys

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The 3rd Annual I.CARE Trash Derby has come to a successful close, delivering a powerful message of community-driven conservation. In partnership with SSI Blue Oceans, Mares, and several other industry leaders, I.CARE once again led an inspiring grassroots effort to restore and protect the marine environment of the Florida Keys.

This year’s Trash Derby broke records, drawing support from more than 900 participants—including divers, boaters, and conservation advocates—who collectively removed an impressive 36,459 pounds of marine debris. Over a two-day period, teams worked on land, along shorelines, and at reef sites both above and below the water, making a meaningful contribution to the region’s ecological health.

“I am so proud of everyone involved in last week’s I.CARE Trash Derby,” said Mike Goldberg, Co-Founder of I.CARE. “This level of success comes from the passion and hard work of hundreds of people who care about our oceans, reefs, and local communities. I’m filled with gratitude.”

Recognizing Top Contributors: From Trash to Triumph

The event featured competition across three categories—Land & Shore, Private Boat, and Dive Operator—awarding teams based on the amount of debris collected per person. Additional special recognitions included the most monofilament retrieved and the most unusual item found. Congratulations to the standout teams of 2025:

Land & Shore Division:

  • Tired of Tires – 1,128.75 lbs/person

  • DerSno – 930.7 lbs/person

  • KnotaYacht – 124.2 lbs/person

Private Boat Division:

  • Triple Crown – 1,076.83 lbs/person

  • Fisherman & the Mermaid – 735.95 lbs/person

  • Dumpster Diving Divas – 572.875 lbs/person

Dive Operator Division:

  • Quiescence Diving – 430.6 lbs/person (average)

  • Key Dives – 141.3 lbs/person (average)

  • Captain’s Corner – 83.2 lbs/person (average)

Special Awards:

  • Most Monofilament Collected: Conch Republic Divers (26.8 lbs)

  • Most Unique Item Found: Bilge Buddies

Celebrating Conservation with Community and Education

The weekend concluded with the Trash Derby Festival at Founders Park in Islamorada. Attendees enjoyed live music, food, and sustainability-focused vendors, all centered around marine conservation. The festival also provided opportunities to connect with environmental organizations and celebrate the participants’ achievements.

“The energy and dedication from everyone involved was incredible,” said Rachael Steidley, SSI’s North America Marketing Manager. “This event goes beyond collecting trash—it’s about building a movement and inspiring conservation on a global scale.”

Looking Ahead to 2026: Raising the Bar

Plans are already underway for the 4th Annual I.CARE Trash Derby, with organizers calling on dive pros, boaters, and ocean advocates to help set an even bigger record next year.

To get involved or learn more about how you or your dive shop can participate in 2026, visit www.icaretrashderby.com or contact I.CARE at info@icareaboutcoral.org.

Let’s keep making waves for the planet—one pound at a time.

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News

Paul Toomer leaves RAID

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paul toomer

Dive industry veteran Paul Toomer has officially announced his departure from Dive RAID International, marking the end of a significant chapter in his professional journey.

In a statement released today, Toomer shared:

“It is with sadness that I must advise that I am no longer involved with Dive RAID International (RAID HQ).This decision was not made lightly and reflects a mutual understanding between RAID and myself. I have greatly valued contributing to RAID’s growth and accomplishments over the years. However, we now hold differing visions for the future, and it is time for me to take a new path.

As of now, I am no longer in a position to respond to inquiries from RAID members, regional offices, or representatives. Please direct any questions to your local RAID office or to Dive RAID International directly. Contact information is available on the official website.

Even though I am no longer involved with RAID HQ, I have not lost my passion for working in this amazing industry and I will continue to teach and dive. My rebreathers will probably see more action now than they ever have.Of course I wish the RAID guys all the best going forward.”

Toomer has been an influential figure in the global diving community for decades, and his leadership played a major role in shaping RAID’s reputation as a forward-thinking training agency. While his next steps have not yet been publicly disclosed, his continued commitment to diving suggests exciting things ahead.

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