How to Become PADI Certified — A Beginner's Step-by-Step Guide
- Jun 2
- 6 min read
If you've ever watched a scuba video and thought "I want to do that one day," you're not alone — and the good news is, it's much easier than most people think. Learning how to get PADI certified has become a rite of passage for travelers, ocean lovers, and anyone planning a PADI Koh Tao adventure. In this beginner-friendly guide, we'll walk you through exactly what you need, the five steps to certification, how long it takes, and where to do it for the best experience. Let's get you ready to take your first breath underwater.
What Do You Need Before Getting PADI Certified?
Age & Swimming Requirements
You only need to be 10 years old to start a PADI course (anyone under 15 will be certified as a Junior Open Water Diver). You'll also need basic swimming ability — specifically, the ability to swim 200 meters without aids (or 300 meters with a mask, fins, and snorkel) and float or tread water for 10 minutes. You don't need to be an Olympic swimmer; just comfortable in the water.
Medical Fitness — What to Check Before You Book
You'll need to be medically fit for diving, which means filling out a short medical questionnaire before your course. If you have any heart, lung, or ear conditions — or take certain medications — you may need a doctor's sign-off before diving. It's quick to check and worth doing before you travel.
What to Bring — Gear Is Provided, Here's What Isn't
The good news? Your dive school provides all the essential scuba gear: BCD, regulator, tanks, weights, wetsuit, mask, fins, and snorkel. What you'll want to bring yourself is swimwear, reef-safe sunscreen, a towel, and a refillable water bottle. Some divers also bring their own mask if they have a specific fit preference — but it's not required.
The 5 Steps to Get Your PADI Open Water Certification
So how does the actual certification process work? Here are the five steps every new diver goes through, from booking your course to walking away with a card that's valid worldwide.
1. Choose a PADI Dive Center
The first and arguably most important step is picking the right school. Look for a PADI 5-Star Dive Center such as The Dearly Koh Tao Hostel, check recent reviews, and make sure they have small group sizes, multilingual instructors, and an on-site pool. The quality of your instructor will shape your entire diving career, so don't pick the cheapest option — pick the right one.
2. Complete the PADI eLearning
Once booked, you'll receive access to PADI's online learning platform where you can study the theory at your own pace. Most students finish the eLearning in 8–12 hours, and starting it before you arrive means you’ll get a head start on the course.
3. Pool / Confined Water Sessions
Day one is usually spent in a swimming pool, where your instructor walks you through five skill sessions — clearing your mask, regulator recovery, buoyancy control, and more. This is where you build confidence in a safe, shallow environment before heading to the ocean.
4. Complete 4 Open Water Ocean Dives
Over the next two days, you'll head out on the dive boat and complete four real ocean dives, spread across two days. You'll practice the skills you learned in the pool, explore real reefs, and start logging dives in your official PADI logbook.
5. Pass the Final Exam
The final exam is a short multiple-choice quiz covering the theory from your eLearning. Don't worry — your instructor reviews everything with you beforehand, and it's designed to confirm understanding, not trick you. Pass it, and you're officially a certified diver for life.
How Long Does It Take?
So how much time do you actually need to set aside? The PADI Open Water course takes a minimum of 3 days from start to finish — typically one day of theory and pool work, followed by two days of ocean dives. If you complete the eLearning before you arrive, you can usually start your in-water training on day one and finish the course in three full days. Some students stretch it across four days at a more relaxed pace, especially if combined with a holiday.

Where to Get PADI Certified — At Home or on Holiday?
This is the big decision most beginners face: certify at home where it's familiar, or wait until your next trip somewhere warm? Both have their place.
Getting Certified Locally — Pros and Cons
Getting certified in your home country means you can spread sessions across multiple weekends and dive in familiar conditions. The downside? It's usually significantly more expensive, water can be cold or murky, and you may not develop the same love for diving in a quarry as you would on a tropical reef.
Getting Certified on a Dive Trip — Best Value and Experience
For most travelers, getting certified on holiday is the better choice. Tropical destinations offer warm, clear water, lower prices, and an experience that's actually fun rather than a chore. You'll also walk away with vivid memories of turtles, reef sharks, and coral gardens — instead of a cold lake.

Why Get Your PADI Certification in Koh Tao?
If you're choosing a dive destination, one little island in Thailand consistently tops every diver's list. Here's why.
Best Conditions, Best Price, 20+ Dive Sites — Why Koh Tao Wins
Koh Tao is second only to Cairns, Australia in the number of PADI certifications issued each year. The water is 27–30°C year-round, visibility regularly hits 20–30 meters, and there are over 20 dive sites within a short boat ride from shore. Add in some of the world's most affordable course prices, and it's no surprise so many travelers add a PADI Koh Tao stop to their Southeast Asia plans.
Start Your PADI Koh Tao Journey at The Dearly Dive
At The Dearly Dive, we're a PADI 5-Star Dive Center based inside The Dearly Koh Tao Hostel. With our on-site swimming pool, multilingual instructors, and combined dive-and-stay packages, getting certified with us is genuinely as easy as it gets. You wake up, train in our pool, head straight to the boat — and end your day in our garden patio with a fresh meal and new friends from around the world.
How to Get PADI Certified (FAQs)
1.Can I get PADI certified in one day?
No. The full Open Water course takes 3 days minimum. However, you can try Discover Scuba Diving in one day, which is a great introduction without certification.
2.Can I do the eLearning before choosing a dive school?
Yes — and we highly recommend it. You can complete it anywhere, anytime, and it shortens your in-water schedule once you arrive.
3.What if I fail the final exam?
Don't worry — instructors review the material with you beforehand. If you don't pass the first time, you simply retake it. Almost no one fails permanently.
4.Do I need my own scuba gear to take a PADI course?
No. All scuba equipment is included in your course fee. Just bring swimwear, sunscreen, and a towel.
5.What can I do after getting PADI certified?
Anything! Book fun dives worldwide, explore wrecks, go on liveaboards, or continue with Advanced Open Water to dive deeper sites.
6.Do you offer dive course + accommodation packages?
Yes! The Dearly Koh Tao offers combined dive course and accommodation packages, so you can stay, train, and dive all under one roof. The Dearly Koh Tao or message us for current rates.
In Conclusion
Now you know exactly how to get PADI certified — from the requirements to the five-step process, the timeline, and where to do it. The truth is, the hardest step is just booking your course. Once you're in the water, the rest takes care of itself.
Ready to take the plunge? The Dearly Dive is here to make your first PADI experience as smooth as possible. With our PADI 5-Star Dive Center, on-site swimming pool, and combined dive-and-stay packages all under one roof, you'll be exploring Koh Tao's underwater world in no time.
Start your PADI journey with The Dearly Koh Tao
call: +66-(0)77-332-494 | +66-(0)61-608-1988
Facebook: The Dearly Koh Tao Hostel | The Dearly Dive
Line & whatsapp: +66 61-608-1988




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