OWD vs AOWD: What is the Difference?
OWD max 18m, AOWD max 30m. Compare course content, depth limits, and which to choose.
Key Differences
| OWD | AOWD | |
|---|---|---|
| Max depth | 18m | 30m |
| Prerequisites | None | OWD required |
| Duration | 3-4 days | 2-3 days |
Which first?
OWD always comes first. It is the foundation.
When to take AOWD?
After 10-20 logged dives to better understand deep diving concepts.