Big Blue Tech Thailand

Welcome to Big Blue Tech, Koh Tao,

Thailand’s leading technical diving center.

With our outstanding training ethics, the fact that we have some of Thailand’s leading tech instructors and a diverse range of SCUBA diving options for the advanced diver and you’ll see why Big Blue Tech will be your perfect Koh Tao tech diving experience.

We are a 5 STAR SDI / TDI Instructor Training facility

Tech courses - Tech diving trips

Know what you're looking for?

Book online
tech dive profile
xdeep boltsnap

Why Big Blue Tech?

It could be Advanced Nitrox and Decompression Procedures or it could be a Technical Wreck course like TDI Advanced Wreck that draws you into the world of technical diving, or you may already have plenty of experience and would like to move up to diving on Trimix gas. Whichever one it is – we can help. Here at Big Blue Tech Koh Tao, tucked on a small island in the Gulf of Thailand, our courses are run by a dedicated group of highly qualified instructors who are extremely experienced at introducing new students to technical diving in a safe and friendly way. All in an awe-inspiring beachside environment.

With both a private training pool and dedicated dive boat, we are able to offer technical diving courses and technical fun diving to both individuals and groups. With most of our dive sites located close to the island, guests will also get plenty of time to enjoy some relaxed island life. But we do also offer day trips to different and more distant dive sites. No matter what has brought you to Big Blue Tech, it’s time to take your first steps towards becoming the technical diver you’ve always wanted to be.

already know what technical diving course you want?

Book online
Become inspired to be less ordinary

Tech diving courses

Whether you’re an experienced technical diver looking to explore the farthest reaches of beautiful Koh Tao island or you’re a budding ocean explorer keen to improve and increase your skills, Big Blue Tech has the perfect course options for you. Check out our range of courses below and hit the contact us button if you have any questions.

All courses
TDI Sidemount Diver

TDI Sidemount Diver

15,000 ฿
Prerequisites Minimum age 18 Minimum certification of Open Water Scuba Diver Online materials 3 days - pool & 4 dives All Sidemount equipment (see FAQ's), gases & dives included
More info
TDI Intro To Tech

TDI Intro To Tech

15,000 ฿
Intro to Tech at a glance: Prerequisites Minimum age 18, 15 with parental consent Minimum certification: SDI Open Water Scuba Diver or equivalent Proof of 25 logged open water dives 3 days - pool & 4 dives Online materials
More info
SSI Nitrox Diver

SSI Nitrox Diver

5,500 ฿
SSI Nitrox Diver at a glance Prerequisites 10 years of age, as Nitrox is a theory-based course it’s open to all. Online learning 0.5 Day Dry Course
More info
TDI Advanced Wreck

TDI Advanced Wreck

25,000 ฿
TDI advanced wreck at a glance: Prerequisites Min Age 18 Proof of 50 logged dives Recreational Wreck Diver In addition to TDI standards, Big Blue Tech requires divers to have Sidemount or Twinset training and be a certified Decompression Diver. 4-5 Days - 8 Dives Cert Level: Dark Zone Wreck
More info
TDI Advanced Nitrox and Decompression Procedures

TDI Advanced Nitrox and Decompression Procedures

35,000 ฿
TDI Adv Nitrox & Deco Procedures at a glance Prerequisites Minimum age 18 Advanced Adventure Diver, Advanced Diver, or equivalent Sidemount or Twinset Diver Nitrox Diver Sidemount or Twinset certification Proof of 50 logged open water dives online learning 4-5 days - pool & 6 dives
More info

Courses from several tech certification agencies

With tech courses from Technical Diving International (TDI), Scuba Schools International Extended Range (SSI XR), and the International Association of Nitrox and Trimix Divers (IANDT), we use the latest in training techniques and go well beyond set training requirements with all of our students to make sure they will be safe in all diving conditions, securing their enjoyment in tech diving and making them the best tech divers they can be. Be the best tech diver you can be!

Book online

Big Blue Tech is the best, but don't just take our word for it...

“Some of my best diving over my three months on Koh Tao was with Andy and the other divers with Big Blue Tech, who were all very knowledgeable, helpful, and love diving as much as me. Highly recommended and world-class!”

TheBlondeNomad Tech Sidemount

“The thing that stands out at Big Blue Tech is the attention to detail and safety. Nothing goes unnoticed and if you do make mistakes, it will lead to discussion so you actually learn Why it is so important to do certain things in certain ways. 
I have had great experiences with the team and Big Blue Tech and will definitely be back for more amazing diving.”

Tim K Tech Sidemount - XR Sidemount Instructor

“The way I dive today is completely different than the way I was diving before, and this is due to the fact Andy is a perfectionist and manages to communicate his passion about diving in a way that makes his students want to become better divers.”

Alex SJ Tech Sidemount

“Big Blue Tech will transform the way you dive. I did the TDI Advanced Nitrox, Deco Procedures, and Advanced Wreck courses in sidemount with Andy and Evan and couldn’t be happier with their instruction and guidance. It was challenging for me as a diver with only moderate experience, but their patience and persistence saw me through. They also really tightened up my sidemount skills.”

Miguel I Tech SIdemount - ANDP & TDI Advanced Wreck

“Had an unbelievable time diving with big blue tech this time around. The crew made my time there unforgettable, going above and beyond to help set up my new dive gear and take me on some of the best dives of my life.”

Chris G Full Face Mask & Tech Sidemount