Plan your trip with a local expert We build a plan around you. Free.

Open Water Diver Koh Tao: 3 days, 4 ocean dives

★★★★★★★★★★ 4.97 (1,146 reviews) 98% rated it 5 stars
Free cancellationTravelers' pick
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives 2
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives 3
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives 4
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives 5
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives 6
  • Open Water Diver Koh Tao: 3 days, 4 ocean dives 7
1/7
Duration3d
GroupUp to 4
LanguagesEN · DE +4
PickupAt your hotel

Dive into Koh Tao’s top sites with your first certified 18-meter open water experience

You complete three days of academics, pool training, and four ocean dives around Koh Tao, progressing from 12 meters to the full 18-meter limit. All equipment is provided, and you walk away with a digital PADI certification card that's valid worldwide. The final two dives are pure exploration — no drills, just diving on some of Koh Tao's best sites.

3d

Step-by-step itinerary

Day 1 — Academics and confined water skills

  • Meet instructor and students
  • Attend first academic session
  • Lunch break
  • Confined skills session in afternoon

Day 2 — Academic session and confined water dives

  • Morning academic session
  • Boat to dive sites
  • Confined water training dive 1
  • Confined water training dive 2

Day 3 — Open water dives and final exam

  • Dive 1 at 18 meters max depth
  • Dive 2 at 18 meters max depth
  • Final exam at school

The Experience

So you're sitting in a classroom on day one, and your instructor is walking you through the physics of pressure and buoyancy, and you're thinking "okay, this is actually important stuff" — not just safety theater, but real knowledge you'll need down there. Then you're in the pool that afternoon doing your first confined water session, getting used to the regulator in your mouth, learning to clear your mask underwater, and suddenly it clicks that this is actually happening. By the end of day one on Koh Tao, you've done the academics and your first training dives in controlled water, so you're not walking onto a boat on day two as a complete beginner.

Day two is where it gets real. You're heading out on the boat in the morning after another academic session, and your instructor takes you to two different dive sites around Koh Tao — still confined water training, still a maximum depth of 12 meters, but now you're in the actual ocean with real currents and real fish and real depth beneath you. The dive sites here are calm and clear, which is why they use them for courses; the visibility is good enough that you can see what you're doing, and the conditions don't throw curveballs at you while you're still learning. Your instructor is right there, watching every move, and you're practicing the skills that matter — equalizing pressure, controlling your buoyancy, staying calm when something feels off.

Day three is the payoff. Two dives at the maximum depth you're certified for — 18 meters — and this time there's no training, no exercises, no instructor hovering over you checking off a checklist. You're just diving. You're seeing the reef, the fish, the actual underwater landscape you came here for, and you're doing it as a certified diver. After those two dives, you sit down for the final exam at the school, and then you've got your digital certification card. You can dive anywhere in the world up to 18 meters with a certified buddy, and you didn't need to fly somewhere else or spend a week doing it.

The course includes all the equipment — tank, wetsuit, BCD, regulator, the whole setup — so you're not renting pieces from five different shops or figuring out what you actually need. Coffee and tea are there between sessions, which sounds small until you're sitting in the heat between dives. You get the online theory material to work through, and the pool training happens in controlled water before you're anywhere near the ocean. It's structured so that by the time you're at 18 meters on day three, you've already practiced everything in shallower water.

What’s included

  • Online theoretical material covering diving physics, safety, and procedures.
  • one confined water training session in a pool.
  • full SCUBA equipment including tank, regulator, BCD, and wetsuit.
  • four open water dives in the ocean around Koh Tao.
  • digital PADI certification card.
  • coffee and tea between sessions.
Good to know
Moderate physical levelPublic transport nearbyNot for pregnant travelersNot for heart conditions

Operated by Koh Tao Scuba Club

Is this one for you?Right for anyone who wants to dive independently after the course without arranging training elsewhere — three days is what it takes to go from zero to certified at 18 meters. You need moderate fitness and should be comfortable in water, since the pace moves from pool to ocean dives by day two.

Traveler reviews

4.97★★★★★★★★★★
1,146 verified traveler reviews
5 1,120
4 23
3 1
2 1
1 1
Read all the reviews ›

Compare the 11 similar options

Same experience, different operators — compare price, rating and length.

Open Water Diver Koh Tao: 3 days, 4 ocean divesYou are hereOpen Water Diver Koh Tao: 3 days, 4 ocean dives★ 4.97 (1,146)3dEN · DE +4US$ 340
Koh Tao & Nangyuan: Vintage Boat Snorkeling, Sunset BBQ, PickupKoh Tao & Nangyuan: Vintage Boat Snorkeling, Sunset BBQ, PickupStep onto a vintage wooden boat in Koh Tao for snorkeling at six bays, paddleboarding, sunset BBQ dinner, and hotel pickup. All gear and meals included.★ 4.61 (154)7hEN · THUS$ 31View ›Koh Tao Snorkel Tour: 5 Bays & Nangyuan Island with LunchKoh Tao Snorkel Tour: 5 Bays & Nangyuan Island with LunchSnorkel tour around Koh Tao with max 25 people. Visits Freedom Bay, Buddha Rock, Shark Bay, Aow Leuk and Tao Thong Bay. Includes hotel pickup, gear, lunch and guide.★ 4.84 (148)6hEN · THUS$ 46View ›Bali: SSI Basic Diver Day Experience & Two Guided DivesBali: SSI Basic Diver Day Experience & Two Guided DivesMeet your SSI instructor in Bali, learn scuba basics, and dive up to 12 meters with all equipment included. Coffee or tea, small group size, and optional second dive.★ 4.90 (205)1dEN · DE +3US$ 121View ›Koh Tao: PADI Open Water Diver Certification in 3 DaysKoh Tao: PADI Open Water Diver Certification in 3 DaysPADI certification in 3 days on Koh Tao with 4 open water dives, theory, and gear included. Max depth 18 meters by day three. International certificate issued.★ 4.99 (107)3dEN · DE +2US$ 357View ›Open Water Scuba Certification Koh Tao: 4 days, 4 ocean divesOpen Water Scuba Certification Koh Tao: 4 days, 4 ocean divesOpen Water scuba certification in Koh Tao over 4 days with pool session and 4 dives. Includes all gear, boat, safety briefing and instructor training.★ 4.98 (173)3dEN · ESUS$ 402View ›Koh Tao Try Dive: First Scuba Lesson & Boat TripKoh Tao Try Dive: First Scuba Lesson & Boat TripFirst scuba dive in Koh Tao with instructor and equipment. Includes safety briefing, shallow-water skills, one 12m dive, snacks and drinks. Small groups, no experience needed.★ 4.55 (20)1dEN · ESUS$ 93View ›Koh Tao: 3-Day PADI Open Water Scuba CertificationKoh Tao: 3-Day PADI Open Water Scuba Certification3-day PADI Open Water course in Koh Tao with private boat, all equipment, and certification. Small groups, expert instructors, four open water dives included.★ 5.00 (12)3dEN · THUS$ 418View ›Koh Tao: 3 Dive Catamaran with MV Chaba & LunchKoh Tao: 3 Dive Catamaran with MV Chaba & LunchThree guided dives on Koh Tao's top sites—Sail Rock, Chumphon Pinnacle—aboard MV Chaba. Includes lunch, gear, guide, small groups. 8am-3pm.★ 5.00 (2)7hEN · TH +1US$ 111View ›Koh Tao: Try Scuba Diving & SSI CertificationKoh Tao: Try Scuba Diving & SSI CertificationFirst scuba dive in Koh Tao's crystal waters with small groups, gear included & SSI card. 8:30am start, boat to Koh Nang Yuan, one dive option plus second dive add-on.★ 4.85 (47)8hEN · PT +1US$ 119View ›Koh Tao: PADI Advanced Diver Course & 30m Depth CertificationKoh Tao: PADI Advanced Diver Course & 30m Depth CertificationPADI Advanced Open Water certification in Koh Tao with 5 specialized dives and equipment included. Choose from deep, navigation, wreck or night diving.★ 4.94 (17)2dEN · DE +4US$ 337View ›
Explore more: Scuba Diving »
Compare more experiences like this »

Top questions

How deep can I dive after the Open Water certification?
Maximum depth of 18 meters with a certified buddy. Days 1–2 training dives are limited to 12 meters; days 3 dives reach the full 18-meter limit.
What's included in the course fee?
Online theory materials, pool training session, all SCUBA equipment (tank, regulator, BCD, wetsuit), four ocean dives, digital certification card, and coffee/tea between sessions.
Do I need diving experience before starting?
No. The course is designed for beginners. You need a moderate level of physical fitness and should not have serious cardiovascular issues or be pregnant.
What are the dive sites like around Koh Tao?
Calm, clear water with good visibility and suitable depths for training and certification dives. Conditions are generally very good, making Koh Tao ideal for open water courses.
When do I get my certification card?
After completing the final exam on day three, you receive a digital PADI certification card that is valid worldwide.
Is there a minimum fitness level required?
Yes, at least a moderate level of physical fitness. The course is not recommended for travelers with poor cardiovascular health or those who are pregnant.

Open Water Diver Koh Tao: 3 days, 4 ocean dives

3d · EN · DE +4 · at your hotel

from US$ 340 per person

★★★★★★★★★★4.971,146 reviews
from
US$ 340per person
See dates & prices ›Pick your date and pay when you book
🔥See others from US$ 93
More experiences in Koh Tao »
Do you need help planning your next activity?