- Who
- Jacobus Jacobs
- What
- 8/20/38 hour(s):minute(s):second(s)
- Where
- South Africa (Rustenburg)
- When
The longest scuba submergence on one cylinder is 8 hr 20 min 38 sec by Jacobus Jacobs (South Africa) at All About Scuba, Rustenburg, South Africa, on 27 January 2007.
One 12 litre scuba cylinder was used for this attempt.
