In Depth Training

04/16/2026

03/10/2026

11/13/2025

NEW FIRMWARE RELEASE NOW AVAILABLE V102

A new firmware release is available to support Swift GPS functionality across Shearwater air integrated dive computers - Perdix 2, Perdix AI, NERD 2, Petrel 3, and Peregrine TX. Updates for Tern TX and Teric will follow later this year.

There has also been a change to the default value of GF Low to 50%. So the default Tec mode GF is 50/70 (previously 30/70). The default Rec mode GF fixed conservatism values are now 50/75 (high), 50/85 (med), and 50/95 (low). The effect of increasing GF Low is to move the deepest decompression stops shallower. The default values of GF High are unchanged. NDL dives are not affected at all. The dives that are affected are ones that require mandatory decompression.

Please see the release notes specific to your model for details. https://shearwater.com/pages/support

06/13/2025

05/28/2025

Not a very accurate title, but a catastrophic chain of events demonstrating poor judgement on the part of the instructors

Share a Story: Fill in this Formhttps://forms.fillout.com/t/hjWtnSvfYmus Thanks for watching.If you enjoyed this video and would like to watch more videos fr...

05/27/2025

The Many Factors in Decompression Stress

Most personal factors that affect decompression stress can be modified. Divers know their bodies best, so assess your risks with each upcoming dive.

05/20/2025

Free, online DAN continuing education courses.

https://dan.diverelearning.com/?t=available

05/15/2025

Your lungs and diving

The lungs can be impacted by diving. Lung conditions are among the most common reasons people fail diving medical examinations. Read more about lungs and diving.

04/17/2025

Eliminating the quarter-turn back on the cylinder valve.

Make it your standard practice to gently and completely turn on your air. If you’re an instructor, consider not teaching students the quarter-turn back.