OpenWaterPrep
◆ Updated for 2026 · PADI · SSI · NAUI

Pass your Open Water exam — and feel calm underwater.

The complete study system for nervous beginners: understand how diving actually works, walk into your course confident, and pass the written test the first time.

Instant PDF · Pass guarantee · One-time payment

or try the free practice quiz →
250 questions5 modules6 diagrams7-day plan
The OpenWater Pass System cover

Peek inside

Real pages. Built for 2026 — not a recycled PDF.

250 questions — every answer explained
250 questions — every answer explained
Original diagrams, not stock clip-art
Original diagrams, not stock clip-art
Safety made visual
Safety made visual
An illustrated A–Z glossary
An illustrated A–Z glossary

Everything you need to pass — and nothing you don’t.

5 teaching modules

Physics, equipment, physiology, tables & skills — taught by the why, not rote facts.

250 practice questions

Every answer explained, plus why each wrong option is wrong. Two timed mock exams.

6 original diagrams

Pressure, gear anatomy, equalization, ascent profile, no-stop limits, hand signals.

Illustrated glossary

Every term you’ll meet on the exam, in plain language.

Exam-Day Quick Card

A printable tear-out of the numbers that keep you safe.

7-day study plan

30–45 minutes a day takes you from nervous to ready.

The OpenWater Pass System

Get certified & confident — for the price of a dinner.

  • 5 in-depth teaching modules$39
  • 250 explained questions + 2 mock exams$29
  • 6 diagrams + illustrated glossary$12
  • Exam-Day Quick Card (printable)$7
  • Pass Guaranteepriceless
$87$39today

Secure checkout by Stripe · instant PDF download

PASS
OR
REFUND

The Pass Guarantee

Study the system, take your exam, and if you don’t pass we refund every cent. See the policy.

Questions, answered

Will this help me pass the PADI / SSI / NAUI exam?+

Yes. The entry-level Open Water written exam tests the same core theory across agencies — physics, equipment, planning, safety and emergencies. This system covers all of it, and we back it with a pass guarantee.

Are these the real exam questions?+

No — and that’s deliberate. Every question is original, written to mirror the format, difficulty and reasoning of the real exam so it feels familiar, without copying any agency’s copyrighted test.

I’m nervous and not very ‘sciency’. Is it for me?+

Especially for you. We teach with plain language and everyday analogies, focusing on understanding — so the rules feel obvious instead of intimidating.

How do I get it?+

It’s an instant digital download (PDF). After checkout you’ll get an email with your copy and a download link — read it on your phone, tablet or computer.