SHOW / EPISODE

Zacatón: Sheck Exley's Last Dive

Season 1 | Episode 4
10m | Oct 3, 2026

Tamaulipas, Mexico, 6 April 1994. Sheck Exley, the man who wrote the rules of safe cave diving, and his partner Jim Bowden drop down two separate lines into Zacatón, a flooded sinkhole sounded at more than a thousand feet. Bowden turns at 925 feet and lives. Exley does not come back. Told from the Journal of Diving History, the account reprinted by IUCRR and the published record.

Chapters

0:00 Two lines in the dark

0:49 Peacock Springs

2:15 The rules

3:35 Deeper

5:01 Zacatón

6:23 Nine hundred and twenty-five feet

7:34 The stop at a hundred feet

8:07 The line

8:46 What the record says

Sources

Barbara J. Dwyer, "Homage to a Legend: Sheck Exley", The Journal of Diving History 113 (2022), reprinted by NSS-CDS: https://nsscds.org/wp-content/uploads/2022/12/Sheck_Exley_JODH113.pdf

IUCRR, "Under Pressure" (account of the Zacatón dive): https://iucrr.org/accident-analysis/articles/under-pressure/

Wikipedia: Sheck Exley: https://en.wikipedia.org/wiki/Sheck_Exley

Wikipedia: Zacatón: https://en.wikipedia.org/wiki/Zacat%C3%B3n

Wikipedia: Cave diving (the five rules; Basic Cave Diving: A Blueprint for Survival, 1979): https://en.wikipedia.org/wiki/Cave_diving

Full transcript:

https://pub-413c1fc5107e439dbec7a1f1c322ed45.r2.dev/diving/transcripts/ep04.vtt

Caving Stories on YouTube:

https://www.youtube.com/@caving_stories

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Produced by Caving Stories.

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Caving Stories: Cave Diving
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