Compare training agencies
Four bodies. One decision.
All four issue globally recognised Open Water certifications. The differences are in learning style, cost, and where you'll find instructors. Pick the one that fits — or let us recommend based on your goals below.
PADI
Professional Association of Diving Instructors
Typical Open Water package: $450–$700 USD
Strengths
- 6,600+ dive centres worldwide
- Recognised at virtually every liveaboard and resort
- Consistent, well-produced learning materials
Trade-offs
- Materials are proprietary and priced at a premium
- Digital access fees are additional to the course
Best fit: Travelling divers who want a certification that's recognised anywhere.
SSI
Scuba Schools International
Typical Open Water package: $350–$550 USD
Strengths
- Free digital learning app for the basics
- Modern, cloud-first curriculum
- Instructors have room to adapt lessons to the class
Trade-offs
- Certifications are issued through affiliated dive centres
- Slightly smaller resort footprint than PADI
Best fit: Cost-conscious learners who want a modern, digital-first course.
SDI
Scuba Diving International
Typical Open Water package: $350–$550 USD
Strengths
- Dive computer used from the very first dive
- Streamlined digital logs and paperwork
- Strong technical-diving pathway (TDI) for later
Trade-offs
- Smaller consumer brand awareness
- Fewer resort locations than PADI/SSI
Best fit: Divers who want a modern, tech-friendly foundation from day one.
NAUI
National Association of Underwater Instructors
Typical Open Water package: varies by centre
Strengths
- Not-for-profit education focus
- Instructors have wide latitude to teach to mastery
- Strong ties to academic and scientific diving
Trade-offs
- Fewer commercial dive centres, especially in resort areas
- Cost varies more from centre to centre
Best fit: Learners who want deeper mastery, or divers going into science/public safety.
How it works
From curious to confident.
1. Tell us about you
Two minutes. Where you live, when you want to train, and how confident you are in the water.
2. We match verified pros
We check licenses and insurance so you don't have to. Only vetted instructors and shops see your request.
3. They reach out with a plan
You'll hear from a pro with dates, pricing, and next steps. Choose the one that fits — or pass.
Get matched
Tell us about you
Step 1 of 3