Open Water Course: Get Certified as a Diver in Just 3 Days

Get certified as a diver in just 3 days! Dive to a maximum depth of 18 meters with a certified buddy. Join our Open Water Course now!

Duration: 3 days
Cancellation: 24 hours
Highlights
  • Koh Tao Scuba Club - Dive Sites on Koh Tao are perfectly suited for all dive courses, considering depth, clarity, and calmness of the dive environment. The conditions are generally very good making it possible for everyone to dive Koh Tao.
What's Included
  • Online theoretical material
  • 4 Open Water Dives in the Ocean
  • 1 confined water training in pool
  • Use of SCUBA equipment
  • Digital certification
  • Lunch
  • Tea and coffee
Additional Information

Your initial certification is only the beginning of your learning journey! This course is designed to give you the requisite knowledge and abilities to plan and conduct a dive up to 18 meters in depth alongside a certified buddy, all in a performance-based structure.
Day 1 - Academics + Diving
Get acquainted with your instructor and classmates, and…

Location
Koh Tao Scuba Club
Moo
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
5.0
(1141 Ratings)
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Stefanre1972yx
Mar 14, 2026
It was what I had hoped for - What a great experience lessons had from Dion. He just explained clearly. I can really recommend this diving school to everyone
Review provided by Tripadvisor
Boaz
Mar 2, 2026
Onilio at Koh Tao Scuba Club - I did the Open Water Course in 2 days with Onilio, he’s the best! He teaches very good and makes sure everything goes safe. He also knows all the tricks! A big recommendation!!
Review provided by Tripadvisor
Medd2026
Feb 10, 2026
Amazing first time experience - A million thanks to Malcolm for an amazing 3-day SSI Open Water course at Koh Tao Scuba Club! Professional, positive, fun, and super well-structured - exactly the kind of instructor you hope to have for your first serious diving experience. Even in our group of four, everyone got plenty of individual attention, which made a huge difference and helped us feel safe and confident. The skills training in the pool and later in open water at a depth of 6 meters was clear, gradual, and very well supervised. Malcolm was endlessly patient, even when something didn’t work out several times in a row. What impressed me the most was his empathy and ability to notice someone’s worries even before they fully realized it themselves - that’s next-level pro stuff. I’m really glad I had the chance to learn from the best and to discover the underwater world without fear. There was definitely fear before diving into the unknown ocean at 12 and 18 meters for the first time, but the clear diving plan, instructions, and great underwater communication left no room for doubts – only space for excitement and wonder. Thanks for “infecting” me with this new addiction – diving will now make all my future travels even more exciting! If I’m lucky enough to return to Koh Tao one day, I’ll definitely come back for more lessons or a fun dive with Malcolm. Greetings from Lithuania! 🇱🇹 P.S. Big shout-out to photographer Hun for capturing our happiest diving moments - I can’t stop looking at the photos, and we’ll gladly be sharing them with friends and family. The photos were ready the very next day after the course. Amazing service!
Review provided by Tripadvisor
Kevinportner
Feb 4, 2026
Scuba open water - I was with Oni, the course was excellent and very fun! Would do it all over again :) First day was in the pool, then we went to the sea on second and third days.
Review provided by Tripadvisor
Voyager53893222265
Jan 25, 2026
Balanced and professional- perfect mix of fun and learning - I completed both my Open Water and Advanced courses with Oni, and it was an excellent experience. He strikes the perfect balance between being fun and being a strict, disciplined instructor. He focuses strongly on the lessons that truly matter while diving and never compromises on safety. I also loved diving with the team and am very happy to be certified under his guidance.
Review provided by Tripadvisor
Vacation12542674284
Jan 24, 2026
Ae the Whale shark and the Sweds - We had a wonderful instructor called Ae and she was very good at teaching and we had so much fun. We saw a whale shark, Stingray, sea turtle and more beautiful fishes. Thanks Koh Tao Scoba club and thanks Ae for the fun experience😁
Review provided by Tripadvisor
Rebeccass5417ac
Jan 22, 2026
10/10 - A was an excellent teacher and made sure all of us in the group was doing fine and had fun! Loved it!
Review provided by Tripadvisor
Mels_hartogh
Jan 22, 2026
OW diving - It was a very nice experience! First time diving but everything went perfect. Had marina as the instructor wich was also perfect!
Review provided by Tripadvisor
Peterhs9246re
Jan 21, 2026
Sophie is the best! - Had a fantastic experience doing my open water with KTSC. Saw so many fish and corals which I had never seen before. Our instructor Sophie kept everything super safe and fun all the time, and her enthusiasm for diving was infectious!!
Review provided by Tripadvisor
Faraway52948931976
Jan 7, 2026
Dino’s review - Excellent experience, I throughly enjoyed my time on the 3 days open water scuba diving. My instructor Dino’s was very thorough and is excellent at explaining everything. I would highly recommend Scuba club on Koh Toa!
Review provided by Tripadvisor
From $335
up to 15 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).