The Ultimate Guide to Get Scuba Certified: Beginner's Edition
The earth is 71% water, and if you only stick to the land, you are quite literally missing out on most of the planet. You probably already have seen photos of crytal-clear water, vibrat coral reefs, and sea turtles. Seeing all that, have you ever wonder to yourself how can you actually start? How to explore underwater world? How to get scuba certified and not risk having a major FOMO?
If you google “how to get scuba certified,” you get hit with a million confusing terms. PADI? Open Water? DSD? Confined water? It is overwhelming, and it feels like you need a science degree just to book a holiday activity. Take a breath. We’ve got you!
This is your simplified no-nonsense guide to beginner scuba diving courses. Whether you just want a quick underwater selfie for the grid or you are ready to become a legit, certified diver, this guide will show you exactly which path to choose, what to expect, and how to avoid looking like a total rookie.
Welcome to the Ultimate Guide to Scuba Diving Certification: Beginner’s Edition.
You want to breathe underwater? The Basics of Beginner Scuba Diving Courses
Before we talk about courses, theory, and swimming pools, let’s answer the biggest question on your mind.
How Does Scuba Diving Actually Feel Like?
It feels like flying. Once you get your buoyancy dialed in, you are completely weightless. It is peaceful, quiet (except for the rhythmic sound of your own bubbles), and completely disconnected from the noisy world above. There are no group chats, no emails, and no notifications underwater. It is pure mindfulness as you fly alongside marine life.
Who Can Actually Scuba Dive?
Scuba diving is incredibly inclusive. You do not need to be an Olympic athlete or a marathon runner. However, because you are going into an environment humans weren’t naturally built for, there are a few basic ground rules.
The Age Factor
You might be surprised to learn that kids make amazing scuba divers. To get a Junior Open Water certification, the minimum age is 10 years old. For the full adult certification, you need to be 15. There is absolutely no upper age limit. If you are fit and healthy, you can dive well into your 60s and 70s.
The Health Factor
You need to be in decent physical shape. Before you get in the water, you will have to fill out a standard PADI medical questionnaire. It asks simple “yes or no” questions. For example:
- Do you have asthma?
- Do you have a history of heart disease?
- Have you had recent surgery?
If you answer “no” to everything, you are good to go! If you answer “yes” to any question, don’t panic. It just means you need to take a form to your doctor and get a quick medical sign-off before you dive. It is all about keeping you safe. You can review this medical form in advance.
The Swimming Factor
Yes, you need to know how to swim to get a certification. But no, your stroke doesn’t have to be pretty. To get certified, you need to swim 200 meters continuously. There is no time limit, and you can use any stroke you want. You also need to float or tread water for 10 minutes. If you are comfortable in the deep end of a swimming pool, you will be absolutely fine.
The Best Scuba Certification for Beginners: A Quick Comparion
Don’t want to read a massive wall of text just yet? We respect your time. Here is the bite size breakdown of your choices. These are the three main ways a total beginner can start breathing underwater.
Discover Scuba Diving
"a test dive experience"-
1-Day experience
-
12 meter max depth
-
No license. Need to retry to dive again
PADI Scuba Diver
"a mini course version"-
2-Day course
-
12 meter max depth
-
License to dive with a guide
PADI Open Water
"ticket to underwater"-
3-Day course
-
18 meter max depth
-
License to dive with a buddy
Pathway 1: Just Testing the Waters (Discover Scuba Diving)
Not sure if you will actually like being underwater? Terrified of the studying part? Just want a cool experience for your holiday without committing to a multi-day class? The PADI Discover Scuba Diving (DSD) program is made specifically for you.
What Exactly is a DSD?
Let’s be very clear: The DSD is not a certification course. It is an “experience.” Think of it like tandem skydiving. You are doing the fun part, jumping out of the plane, and enjoying the view, but a highly trained professional is strapped to you, handling the parachute, and keeping you alive.
Discover Scuba Diving: What to Expect Step-by-Step
Here is exactly how a typical DSD day goes down so you know what to expect:
Step 1: Pre-course Preparation (20 mins)
Do a deep dive into what you will be doing and how to prepare for the dive day with our Discover Scuba Diving eLearning. We share the QR code for you before the dive day so you can get a glimpse of what to expect.
Step 2: The Briefing (30-45 mins)
Your instructor will sit down with you and explain the basic rules of scuba diving. You will learn how water pressure affects your ears, how to use your breathing equipment, and most importantly, how to communicate with hand signals. (Because you can’t talk underwater, obviously).
Step 3: Shallow Water Skills (1 hour)
We don’t just throw you off a boat and hope for the best. You will get into a shallow calm bay where you can still stand up. You will put your face in the water, take your first breaths from the regulator, and practice a few basic safety skills. Once you realize how easy it is to breathe, the anxiety melts away.
Step 4: The Real Ocean Dive!
Once you are comfortable in the shallow water, your instructor will take you on a real, proper ocean dive! You will go down to a maximum of 12 meters (40 feet). Your instructor stays right next to you the whole time, often holding onto your tank or your hand to guide you around the reef. You get to explore up to 2 dive sites on Koh Tao!
The Pros and Cons of the DSD
- Pros: Fast, cheap, zero heavy studying, and you get to see the reef on day one. It is the ultimate holiday activity.
- Cons: You don’t get a certification card at the end. If you want to dive again next year on a different holiday, you have to do the whole DSD program over again.
Dive with Nava: Ready to dip your toes in? Our Nava Discover Scuba Diving Experience is the perfect half-day adventure. Our patient, highly trained instructors will hold your hand (literally, if you need it) and show you the best beginner-friendly reefs. Book your DSD today!
Pathway 2: Short on Time? The PADI Scuba Diver Course
Let’s say you want an actual, permanent scuba license, but your holiday itinerary is packed. You only have two days to spare before you fly home. Enter the PADI Scuba Diver course.
What is the Scuba Diver certification?
Think of this as “Open Water Part 1.” It is exactly half of the full Open Water course. You do about half of the theory, half of the confined skills, and two of the four required ocean dives.
PADI Open Water vs Scuba Diver: What’s the real difference?
This is a super common question, and people get confused by the names all the time. Here is the key differences:
As a certified Scuba Diver, you have a license, but it comes with permanent training wheels. You are only allowed to dive to a maximum depth of 12 meters (40 feet), and you must always dive under the direct supervision of a PADI professional (like a Divemaster or Instructor). You cannot just rent gear and go diving alone with a friend.
As an Open Water Diver, the training wheels come off. You can dive to 18 meters (60 feet) with any other certified buddy in the world, no professional guide required (though we still recommend using one if you are in a new location!). In some area of the world, this is plausible but not in Thailand where it’s mandatory to dive with a certified professional!
The Pros and Cons of the Scuba Diver Course
- Pros: Only takes 2 days. You get a real lifetime license card. It is super easy to upgrade to the full Open Water certification on your next holiday (you just finish the second half of the course!).
- Cons: You are forever limited to 12 meters and must always pay a dive center to provide a professional guide for you.
Dive with Nava: Only in town for the weekend? The Nava Scuba Diver Course gets you certified fast. You will learn the core basics, get two incredible ocean dives, and walk away with a PADI card in your wallet. Check out our Scuba Diver packages!
Pathway 3: The Golden Ticket (PADI Open Water Diver)
If you are serious about becoming a scuba diver, stop looking around. This is the one. The PADI Open Water Diver course is the most famous, most recognized scuba certification for beginners in the entire world.
When people say, “I got my scuba license,” or “I am a certified diver,” this is the course they are talking about.
Why is this The Ultimate Goal?
Once you pass this course, you are certified for life. You can walk into any dive center on planet Earth, flash your card, rent equipment, and book dive trips. You are licensed to dive down to 18 meters (60 feet) with a buddy. It takes 3 days, but it is 100% worth the effort. It is your passport to the underwater world.
How it Works?–The 3 Phases of Open Water
The course is broken down into three distinct phases. Here is exactly what you will be doing over those 3 days.
Phase 1: Knowledge Development (The “School” Part)
Yes, there is a little bit of studying. You need to understand the basic physics of diving. You will learn how water pressure affects your body, how nitrogen absorbs into your bloodstream, and how to plan a safe dive using a dive computer.
The Best Part? You don’t have to sit in a boring classroom on your holiday! You can do this via PADI eLearning on your laptop, tablet, or phone before you even arrive. Do the reading on your airplane ride, take the quizzes from your hotel balcony, get it out of the way, and spend your actual holiday time in the water with us.
Phase 2: Confined Water Dives (The Shallow Part)
Before we throw you into the deep blue ocean, you will practice in a a very calm, shallow beach water in Koh Tao. Yes! You read that correctly. Koh Tao dive sites are much more beginner-friendly than the rest of the world. That’s why we don’t need a boring swimming pool, we can go straight to the beautiful blue ocean. This is where you build muscle memory and confidence. Your instructor will teach you dozens of skills, including:
Essential Confined Skills Breakdown:
- Equipment Setup: How to put your BCD, tank, and regulators together without looking like a rookie.
- Regulator Recovery: What to do if the mouthpiece accidentally gets knocked out of your mouth. (Spoiler: You just sweep your arm back and grab it. It is super easy).
- Mask Clearing: If your mask fogs up or gets water in it, you will learn how to blow the water out through your nose while completely submerged.
- Buoyancy Control: The holy grail of diving. You will learn how to hover in mid-water like a ninja instead of crashing into the floor or floating to the surface.
- Out of Air Emergencies: How to safely swim to your buddy, signal that you need air, and breathe from their spare regulator.
Phase 3: Open Water Dives (The Ocean Part)
This is where all the hard work pays off. Over two days, you will do 4 real ocean dives from our Koh Tao dive boat: Sunchaser.
- Dives 1 & 2: You will go down to a maximum of 12 meters (40 feet). You will explore the reef, look at the marine life, and repeat a few of the safety skills you learned in the shallow water to prove to your instructor that you can do them in the real ocean.
- Dives 3 & 4: We go deeper! You will go down to 18 meters (60 feet). There is much less skill practice on these dives. It is mostly about exploring, perfecting your buoyancy, and having pure, unadulterated fun.
The Pros and Cons of Open Water
- Pros: Total freedom. A lifetime ticket to dive anywhere on earth up to 18m. It makes you a safer, more confident person in the water.
- Cons: Takes 3 days of your holiday. Requires some studying and reading. It is more expensive than a quick DSD (but a vastly better investment).
Dive with Nava: Ready to change your life? Join the Nava Open Water Diver Course. We keep our class sizes small (often just you and your friends with one instructor) so you get personal attention, safe training, and maximum fun. Plus, our local dive sites are mind-blowing. Become a certified diver with Nava today!
Scuba Gear 101: Demystifying the Equipment
When you show up to the dive shop on day one, you are going to see a lot of weird-looking, heavy equipment. It looks intimidating. Don’t panic. You don’t need to know how it all works right now, your instructor will teach you, but here is a quick cheat sheet so you sound like a pro.
- The Mask: Not “goggles.” A scuba mask covers your nose. This is crucial because you need to blow air out of your nose to equalize the pressure inside the mask as you go deeper.
- The Fins: Not “flippers.” These make you move effortlessly underwater. Remember: In scuba diving, you never use your hands to swim. Your hands stay tucked away, and your legs do all the work.
- The Wetsuit: Keeps you warm and protects you from accidental scrapes against rocks or coral.
- The BCD (Buoyancy Control Device): This is the inflatable jacket you wear. It holds your tank on your back. You push a button to add air to float on the surface, and you let air out to sink down under the water.
- The Regulator: The magic hose system. The “First Stage” attaches to the metal tank. The “Second Stage” goes into your mouth and delivers air to you at the exact pressure you need, no matter how deep you are.
- The Alternate Air Source (Octopus): This is your bright yellow spare regulator. You don’t breathe from it; you save it in case of an emergency.
- The SPG / Dive Computer: Your Submersible Pressure Gauge (SPG) tells you exactly how much air you have left in your tank. A dive computer is worn like a watch and tells you how deep you are and how long you can safely stay there. It is your dashboard.
Pro Tip: Do you need to drop thousands of dollars buying all this before your course? Absolutely not. Nava Scuba Diving provides all the high-quality, serviced gear you need, and it is fully included in your course price. If you want to buy anything before you arrive, just buy your own mask so it fits your face perfectly and doesn’t leak. If you enjoy diving and want to get your own gear, you can also done so on Koh Tao.
How to Prepare Before You Get Scuba Certified
Want to be the star student? Want to make your course as easy and stress-free as possible? Here is how to prep before you arrive at the dive center:
1. Hydrate and Rest
Scuba diving with a hangover is terrible. It ruins the experience, makes you prone to seasickness, and increases the risk of dehydration-related issues. Drink plenty of water the day before, get a good night’s sleep, and save the celebratory cocktails for after you get your certification card.
2. Do Your eLearning at Home
Do not wait until you are sitting on a tropical beach to open your PADI eLearning modules. Do it on the couch at home before your vacation starts. You will retain the information better, and you won’t feel rushed.
3. Manage Seasickness
If you know you get motion sickness on boats, be proactive. Buy over-the-counter seasickness medication (like Dramamine) and take it before you get on the boat. Taking it once you already feel sick is too late. Staring at the horizon and staying out of the boat’s exhaust fumes also helps immensely.
Ready to Take the Plunge? Why Choose Nava?
Getting your scuba certification is one of the coolest, most rewarding things you will ever do. It opens up an entirely new world of travel, adventure, and a global community of ocean lovers.
But who you learn from matters. At Nava Scuba Diving, we don’t just churn out certifications. We build confident, safe, and environmentally conscious divers. We pride ourselves on top-tier equipment, pristine safety records, and instructors who genuinely love teaching.
Whether you want to try a half-day Discover Scuba Diving trip, grab a quick Scuba Diver license, or go all the way with the ultimate Open Water Certification, our team is ready to welcome you to the underwater world.
Contact Nava Scuba Diving today to book your beginner course! Let’s go blow some bubbles!
FAQ: Your Top Beginner Scuba Questions Answered
Is scuba diving hard?
What if I feel claustrophobic underwater?
Are sharks going to eat me while scuba diving?
What happens if I run our of air underwater?
Does my scuba certification ever expire?
Can I wear contact lenses or glasses while diving?
You cannot wear regular glasses under a scuba mask because the arms of the glasses will break the silicone seal, causing the mask to flood with water. However, you can wear soft contact lenses! They are perfectly fine.
You can close your eyes when doing the “mask clearing” skill, so the lenses don’t wash away, which they don’t normally do. Alternatively, you can buy a prescription dive mask with custom lenses.
My ears hurt when I dive to the bottom of a swimming pool. Can I still scuba dive?
Yes! When you dive to the bottom of a pool holding your breath without “equalizing,” the water pressure pushes against your eardrums, which hurts.
In scuba diving, we teach you how to “equalize” your ears (by pinching your nose and gently blowing, like popping them on an airplane). You do this every few feet as you go down. As long as you equalize early and often, you will feel zero pain.