I was just certified by Big Blue Diving this past month, and I am so glad I did it with them. They were extremely professional and made me feel super safe while learning all the necessary information in a short amount of time. I'd highly recommend doing your certification at Big Blue because of the setting and the great instructors!

Incredible all around experience from start to finish. All of the staff were incredible and so much fun

Big blue was awesome. I went for a try dive and ended up doing my open water and advanced. Amazing!

I'd only been scuba diving once and was really looking forward to heading to Thailand to learn to dive! Big Blue was recommended to me by a family friend and what a great recommendation it was.
The website was informative and all contact was super helpful and professional.
Once I finally made it to Koh Tao everything was great. The Open Water course led by Ant gave me the confidence to dive and feel like I know what I'm doing. I then undertook the Advanced course led by Yam who was also an excellent teacher.
I just wish I could have stayed longer and done more than 9 dives!

Had Ant as my instructor to my Open Water training and my Advanced Adventure. He did an amazing job. He was good at teaching, he had an aura of experience and professionalism about him that made you feel safe but he still managed to create a, what felt like, personal relationship with you. In general Big Blue had a welcoming and warm crew, everybody spoke great English, and the equipment was good (a bit worn but that's what you'd expect at such a busy place.

It was a stellar experience. Sonia our dive trainer and Frank who was on his divemaster training did an awesome job on sharing their knowledge and made us the new Open Water Divers.

it was an amazing time with big blue, We did the open water course and found that our instructor, Ant, was an exceptional teacher who was calm in all situations and gave us confidence when going out scuba diving in the sea for the first time. he was very patient. I loved my experience here, as the scenery at night was brilliant too as you can see a video of your last dive while having a beer with your instructors (if you wanted to). The food was brilliant and the cleanliness of the area and equipment was brilliant. looking forward to doing my advanced here in the future!

Big Blue on Koh Tao is the perfect diving school for all levels. For me as a beginner it was a great start and I felt always safe and comfortable from the beginning. Very good academic sessions, a great way to get eased into scuba diving during the pool sessions and awesome open water sessions. Our trainer Erin was the best! Always felt safe and fell in love with scuba diving.

I did my Open Water and Advanced Adventurer with Big Blue. My instructors were amazing, Erin Mihalik and Steven Kelly, can not recommend them both highly enough.

I was supposed to stay there for the open water only but after it, we have decided to stay for the Advence ! They are really serious and we had a very good time at big blue ! Would recommend it and will come back for sure !
Big thanks to Ant and Luke !

Purchased a course but only provided a “rental” of the material. Be sure to get specifics of what you get for your course. No response from customer service after the course. Reception and Thai employees are cold. Very deceptive!

I took the open water course. They made me feel comfortable each step of the way, quite a fun group to learn with, great location and nice having a bar on site for some relax time after learning and diving!

I was lucky enough to have Graeme as my instructor. I was a bit slow and nervous with the whole process but he made me feel comfortable. He was patient and very comforting in the ocean and made me feel safe.

My only complaint would be the cost of the accommodation. It was pricy and uncomfortable. For the price of the course you would think the accommodation would be more affordable.

I really loved diving at Big Blue. In my days there I obtained my Open Water certificate and they were so enthusiastic and knowledgeable that I decided to so my Advanced Adventurer as well. They have great instructors, good equipment and boats, a nice restaurant, etc.

Couldn't have wished for anything better for my first proper diving experience.

I can not recommend Big Blue diving enough. From the location on Koh Tao to the course itself, my expectations were exceeded. I actually had some anxiety going into the course but my instructor, Ant, was able to answer all of my questions and prepare me really well for what to expect once under water. The training actually came in handy during the open dives and I feel that I can confidently continue diving based on the education I received.

I’m so glad that i had the experience to learn how to dive at Big Blue. Felt super safe during the whole stay and won’t forget it my entire life.
I did my Open Water and Advanced and it was the best experience on my entire south east asia trip.
I dived in two other places, and both of them don’t even a chance being as good as Big Blue.
I’m already planning on coming back!

Shout out to MARIA who did a super awesome job of teaching me and made me feel safe the entire time!!

It's the perfect location to learn diving. The dive teachers are well skilled and the location is very beautiful.

Big Blue Diving, Koh Tao offers great diving on a budget. A range of fun dives and dive courses are offered. The training is well delivered, with a high standard and emphasis on safety. Where dive equipment is provided, it is sometimes a little old and worn but looks to be well maintained. Fun dives are reasonably priced. Dive leaders are organised and provide customers with useful friendly advice on safety and local conditions. You may even see a whaleshark or two!

I am travelling around SE Asia with two friends, neither of which wanted to dive so I stayed at Big Blue on my own. I stayed in the (free) dorm room and always felt very comfortable! The dorm rooms are basic but they're clean with aircon and have what you need - what more could you ask from a free room on dive days! Did I mention they're beach side?!
My initial plan was to do a couple of fun dives but I quickly decided that the open course would suit what I wanted to achieve whilst also gaining me a qualification! All communication through email and in person was useful and I always got quick replies.

I had Ant as my instructor with Katie as an assistant - both were amazing! Ant is a very thorough instructor but still encourages the whole group to have the best time and become a team...Leading by example at the end of our course, he was the first to take his celebratory shot at the bar! Both Ant and Katie were happy to answer any and all questions which resulted in me feeling very confident in what I had learnt. They also got me to a point where I felt ready to complete my advanced adventurer course straight after my Open! It really is like a little family at the dive centre - I personally learnt tips and tricks off two other instructors and met a heap of DMs and DMTs.

Big Blue have a great restaurant on sight which has a good mix of Thai and western food available all day. There is a bar right on the beach decking where your group can grab a beer or 'two' after your diving. It's also where you can gather to watch your group's Open Water Course Video - always a good laugh at the end of the course thanks to Bridget's awesome videography! There is onsite laundry options and the office are happy to help with ordering taxis etc !

It's a shame that Koh Tao has the reputation it does, I felt totally safe walking to and from town / bars at night, even as a solo female traveller!

I can't recommend Big Blue and Koh Tao enough, I know I will definitely be going back!

A big thank you to the Big Blue team!

I was there for the open water course about 4 days. My english is not the best, but my diving-teacher Luke was great, he explained everything and slowly. The price was OK and i slept in the free dorm, it was good.

Really serious and so friendly school. I was anxious to dive but everythings was so well done, courses, explications, communication with the staff who really take care of his studens - nothing to say but perfect !
Thanks to Luke he is the best teacher

Booked open water training at Big ue Kho Tao. Excellent instruction good varied dive sites. Booked extra fun dives after training looking forward to booking again

Great instructor Scotty - made things easy with clear communication and a few laughs from the start. This meant we really got to enjoy our dives. Good price and heaps of options after (or without) completing your Open Water.

We arrived on Koh Tao not knowing which Scuba school to attend but started out at Big Blue as it was recommended in Lonely Planet and on Google. From the start we liked the vibe of the place and people.
We started on the OWD training the same evening. Our teacher was very patient with us in the pool and when one of our party couldn't manage the mask removal to start with he stayed with her after the rest had finished all their skills until she was able to do it.
When we went into the actual ocean the next days everything was explained to us in detail and at no stage of any of the four following dives did we feel left alone or unsafe.
Two of us even decided to go on to do the next training course and after five more fantastic dives we can call ourselves Advanced Adventurer :-)
All in all we highly recommend Big Blue Diving and will return for sure!

The instructors are the best. Very skillled and well prices for what you get. Experience worth a lifetime!