Costs & Certification

How Long Does It Take to Get Certified?

The realistic timeline for an Open Water course — and how to make it faster or more relaxed.

By Mat Mora · Updated 30 May 2026 · ~4 min read

An Open Water certification usually takes 3 to 4 days. You can shorten the in-water portion by completing the theory online beforehand, or spread the course over several weekends if you prefer a relaxed pace.

Typical course
3–4 days
Theory online
Saves ~1 day
Weekend option
2–3 weekends
Try-dive
A few hours

The typical 3–4 day timeline

Most Open Water courses are structured something like this:

DayWhat you do
Before you arriveOnline theory + knowledge reviews (optional but recommended)
Day 1Theory wrap-up, equipment, first confined-water (pool) skills
Day 2Remaining pool skills + first open-water dives
Day 3Open-water training dives + skill assessments
Day 4Final dives, sign-off, certification

How to make it faster

Doing your theory online before you travel can cut a full day, letting you certify in roughly 3 days. Some centres offer accelerated courses, but don't rush — comfort and confidence matter more than speed.

How to make it more relaxed

Prefer to take it slow? Many dive centres run referral or part-time courses, letting you complete theory and pool sessions at home and the open-water dives on holiday, or spread everything across a few weekends.

A Discover Scuba / try-dive isn't a certification — it's a single guided experience that takes just a few hours and requires no prior training. It's the perfect way to test the water before committing to the full course.

Learn the scuba basics — free

Speed up your course by learning the theory first. Diving Standard's free lessons cover everything you'll be tested on — at your own pace.

Get the Diving Standard app

Frequently asked questions

Can I get scuba certified in 2 days?

Sometimes, if you complete all the theory online beforehand and conditions allow. But 3–4 days is more realistic and gives you time to build genuine comfort and confidence.

Can I split the course over multiple trips?

Yes. A referral lets you do theory and pool sessions at home, then finish your open-water dives elsewhere — useful if you want to certify on holiday.

How long is a try-dive?

A Discover Scuba experience usually takes 2–4 hours including a briefing, basic skills and a guided shallow dive. No certification or prior experience needed.

About the author

Mat Mora — Advanced Diver (PADI) · Deep & Nitrox (SSI) · Founder, Diving Standard. Mat Mora is a scuba diver, creator, and the founder of Diving Standard — an app built to help divers plan, log, learn and dive more safely. He writes these guides to give new and experienced divers clear, trustworthy answers to the questions every diver asks.

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