PADI Open Water Diver

The PADI Open Water Diver course at Silent Divers in Koh Samui is the world’s most popular scuba diving certification — and the starting point for a lifetime of underwater adventure. Upon completing it, you’ll be a certified diver, free to explore the ocean independently with a buddy to a maximum depth of 18 metres, anywhere in the world.

Koh Samui sits in the heart of the Gulf of Thailand, just 90 minutes by boat from world-class dive sites including Sail Rock, Koh Tao, and Chumphon Pinnacle. There’s no better place in Southeast Asia to learn to dive.

Why Get PADI Open Water Certified in Koh Samui?

As a certified PADI Open Water Diver you’ll be able to:

• Dive independently with a buddy anywhere in the world, to 18m
• Join our dive tours to Sail Rock, Koh Tao, Chumphon Pinnacle and Ang Thong Marine Park
• Progress further — onto PADI Advanced Open Water, Rescue Diver, or specialty courses like Enriched Air Nitrox
• Dive for life — your PADI certification never expires

Koh Samui offers warm, clear water year-round (28–30°C), excellent visibility, and diverse marine life — ideal conditions for learning. Our PADI-certified instructors are multilingual and experienced with divers of all backgrounds.

Course Structure

Before You Arrive — PADI eLearning

We send your eLearning access code as soon as you book. The online theory covers dive physics, equipment, skills, and safety at your own pace — typically 8–10 hours, completed before you arrive in Koh Samui.

Day 1 — Confined Water (Pool)

Pool sessions run 9:00 am to around noon. You’ll master all required PADI skills in a safe, controlled environment under 1-on-1 instructor supervision — buoyancy, regulator clearing, mask clearing, emergency ascents, and more.

Days 2 & 3 — Open Water Dives (4 dives total)

Over two boat days you’ll complete 4 open water dives at sites between Koh Samui and Koh Tao — including vibrant coral reefs and the chance to encounter tropical fish, turtles, and reef sharks. Hotel pickup arranged, boat departs around 9am, back by 3–4pm.

Junior divers: Aged 12–14 dive to 18m. Aged 10–11 dive to 12m. See our PADI Junior Open Water Diver course.

Combine with PADI Enriched Air Nitrox for extended bottom time from your very first certification.

What Dive Sites Will I Visit?

Your open water dives take place at carefully selected sites between Koh Samui and Koh Tao depending on conditions and the day of the week. Common sites include Koh Tao’s world-renowned reefs (Mango Bay, White Rock) and the outer reef walls around Koh Samui. Every dive site features clear water, minimal current for beginners, and rich marine life.

PADI Referrals — Continue Your Certification with Us

Already started your Open Water course at another dive centre? Completed your PADI eLearning and confined water (pool) dives elsewhere but couldn’t finish? No problem — we accept PADI referrals and can help you complete your certification here in Koh Samui.

Whether you ran out of time on holiday, your original dive centre wasn’t the right fit, or you simply want to do your open water dives somewhere more exciting — we’ll pick up where you left off.

What we need from you:

• Your PADI eLearning completion record (if applicable)
• A referral form or training record from your original dive centre
• Details of which skills and dives you’ve already completed

To arrange a referral, please contact us and select “Referral Inquiry” as the category, or email us directly at [email protected]. We’ll review your paperwork and let you know exactly what’s needed to complete your certification.