Try scuba diving in Koh Tao - 2 dives, 3,600 THB
No certification needed. A PADI instructor takes you from your first breath underwater to two real ocean dives on Koh Tao's reefs - all in one day. Want just one dive? 2,600 THB.
Why try diving with Siam Scuba
Max 2 students per instructor
Real attention, real safety. Not a 12-person cattle dive.
Two custom dive boats
We don't share boats with other shops, so the schedule actually runs on time.

PADI 5-Star Center
Same standards as the biggest shops on the island, with a fraction of the people.
What's included
Includes
- ✓Full day with a PADI instructor (English, Spanish, Hebrew spoken)
- ✓All scuba gear (mask, fins, wetsuit, BCD, weights, regulator, 12L tank)
- ✓Confined-water training session
- ✓1 or 2 ocean dives on the reef (your choice)
- ✓Boat snacks: fresh fruit, cookies, tea, coffee, water
- ✓Dive insurance
- ✓PADI Discover Scuba Diving certificate
Not included
- ·Hotel pickup
- ·Accommodation (add 500 THB / night)
- ·Photos & video (add 1,300-2,000 THB)
778 reviews. 5.0 stars on TripAdvisor.
What divers say after their first day under the surface with us.
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
Your day, hour by hour
We keep groups small so the schedule actually runs on time. You're back at the shop by late afternoon, in time for sunset on the beach.
- Day beforeRegister at the shop by 18:00
- 10:30Briefing, gear intro, expectations and safety
- Dive 14 basic skills in shallow water, then descend to max 12m
- Dive 2Just enjoy - no skills, max 12m
- 16:00Activity ends
Ready to take the first breath?
Tell us your dates on WhatsApp - usually we reply within minutes.
Frequently asked
Two dives, one day, 3,600 THB.
Or one dive for 2,600 THB. WhatsApp us - we'll find you a slot this week.
Chat on WhatsApp