Your Dive Adventure
Starts Here
From your first breath underwater to professional-level training — we've got every step covered.
5 Star IDC Dive Center
PADI Courses
Start Your Journey
Basic Courses
Perfect for beginners — take your first breath underwater or earn your first certification.
Advanced Courses
Push your limits and explore deeper, further, and with more confidence.
Professional Level
Turn your passion into a career with professional-level PADI training.
Specialty Courses
Master specific skills and unlock new diving adventures.
Certified Divers
Fun Diving
Already certified? Join us for incredible dive sites around Koh Tao — whale sharks, barracudas, and pristine coral gardens await.
20+ dive sites
Sail Rock, Chumphon, SW Pinnacle & more
Flexible schedules
Morning, afternoon & night dives
Personal attention
Experienced guides who know every site
Morning Dives
Daily departures
Afternoon Dives
Daily departures
Sail Rock
Full-day trip · Every 3 days
✳️ For certified divers only · Schedules may vary depending on weather conditions
Explore Koh Tao
The Dive Sites
Sheltered training bays, granite pinnacles and open-water giants - all within a short boat ride. Browse depth, difficulty and the marine life at each one.
Our Fleet
The Boats
Two custom dive boats — Supannakong & SawSiam — purpose-built for comfort, safety, and reaching Koh Tao's best sites.
Built for Divers
Our boats are fully equipped for a comfortable and safe diving experience. Enjoy freshwater showers after your dive, grab a coffee with cookies and fresh pineapple, and relax across two spacious decks with dedicated equipment storage rooms.
Why Us
Why Choose Siam Scuba
Safety First
Meticulously maintained equipment, emergency oxygen on every dive, and strict safety protocols.
Experienced Instructors
PADI-certified professionals with thousands of dives and a passion for teaching.
Prime Location
Located on Sairee Beach — Koh Tao's main stretch — steps from restaurants, bars, and the pier.
Personal Touch
We keep it personal — more attention, more fun, and better learning for every diver.
Based on 776+ verified reviews on Tripadvisor
"There are so many dive schools in Koh Tao and this one is definitely the best. The friendliest instructor ever — best day of our trip!"
Sarah M.
🇬🇧 United Kingdom · March 2026
"Our instructors Chris and Noah were incredible — kind, helpful, funny and patient. We owe a huge thanks to Siam Scuba, easily one of the nicest dive shops in Koh Tao."
The Johnson Family
🇺🇸 United States · February 2026
"Fantastic experience. The staff were incredibly kind and welcoming. Small group meant I got tons of personal attention. Certified in 4 days and already planning my next dive."
Lucas R.
🇩🇪 Germany · January 2026
Koh Tao Guide
Restaurants, beaches, activities & nightlife — everything you need to know about life on the island.
Ready to Dive In?
Send us a message on WhatsApp and we'll get you booked in minutes. No deposit required — just show up and dive!
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Our Location
Sairee Beach, Koh Tao, Thailand