PADI is the worlds largest training agency but there are loads of other training agencies out there, most of which are regionally based. All agencies recongise each others qualifications so you can use your SSI Open Water course if you wanted to sign up to one of our Advanced Open Water courses.
The maximum depth guides are all on air. Some grades can go deeper than stated with additional training. Any questions? Get in touch below.
| BSAC |
| Ocean Diver |
Ocean Diver |
Sports Diver |
Dive Leader |
Advanced Diver |
| 20m |
20m |
30m |
50m |
50m |
| PADI |
| Open Water Diver |
Advanced Open Water Diver |
Rescue Diver |
Divemaster |
Divemaster |
| |
18m (12m if under 12) |
30m |
35m 1 |
35m |
| CMAS |
| 1 Star |
1 Star |
2 Star |
2 Star |
3 Star |
| 20m |
20m |
40m |
40m |
56m |
| NAUI |
| Scuba Diver 18m |
Advanced Scuba Diver 40m |
Scuba Rescue Diver / Master Scuba Diver |
Divemaster 1 |
| SAA |
| Open Water Diver |
Club Diver |
Dive Leader |
Dive Supervisor 1 |
SAA National Diver |
| 20m |
20m |
35m |
50 |
|
| SSI |
| Open Water Diver |
Advanced Adventurer Diver |
Dive Guide |
Dive Guide with Science of Diving |
| 18m |
30m |
|
|
| NASDS |
| Open Water Diver |
Advanced Open Water Diver |
Rescue Diver |
Dive Supervisor |
| SDI |
| Open Water Diver – 18m |
SDI Advanced Diver |
Advanced + Rescue Diver |
Divemaster |
| SSAC (ScotSAC) |
|
|
Sports Diver – 30m |
Master Diver – 40m |
Second Class Diver / Master Diver 1 |
| ITDA |
|
2** Star Diver |
Advanced Nitrox Diver |
ITDA Rescue Diver |
Extended Range Nitrox Diver (Ntech) |
| ANDI |
| Open Water Diver |
|
Rescue Diver |
|
Divemaster |
| IANTD |
| Open Water Diver |
Essentials Diver |
Advanced Open Water Diver |
Rescue Diver |
Divemaster |
| 21 m |
30 m |
|
|
|
| NASE |
| Open Water Diver |
Advanced Open Water Diver |
Rescue Diver |
Advanced Rescue Diver |
Divemaster |
| 20 m |
30 m |
| PASI |
| Open Water Sport Diver |
Advanced Open Water Diver |
R.A.P.I.D. (Rescue, Accident Prevention & Intervention Diver) Master Diver |
Advanced Deep Air Level 1 |
Divemaster |
| 18 m |
27 m with 5 specialities2 |
27 m3 |
40 m |
| TDI |
| |
|
|
Advanced Nitrox |
Extended Range |
| LA Co UW |
| Basic Certification |
|
Intermediate Certification |
|
Advanced Certification |
| PDIC |
| Open Water |
Advanced Open Water Diver |
|
|
|
