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Whale Shark Koh Tao

Big Blue Freediving - Koh Tao - Thailand

ECO DAY !!!!

One of the key causes of damage on the reef is rubbish that ends up in the ocean. Big Blue is proud to say that they always take part in the monthly clean ups that are organised on the island. You would be amazed at the amount of rubbish and some of the more unusual items that are found!
Along with other dive schools on the island, we gather a bunch of enthusiastic volunteers who give up their day to tidy up both on land and in the water. If you would like to volunteer for one of our clean ups, please email us at  This email address is being protected from spambots. You need JavaScript enabled to view it..

English- ECO DAY !!!!!!! Big Blue Freediving get involved with Conservation warriors of Big Blue! Many people help us to clean the beaches, scuba divers and freedivers we cleaned the underwater world! 

Thanks to all who help us! we did a great work! See you on the next Eco Day for more!

Spanish- ECO DAY !!!! en Big Blue Freediving/apnea, nos involucramos conConservation warriors of Big Blue! Muchos nos ayudaron con limpiezas de playas, buceadores y apneistas limpiamos una pequeña parte de nuestro mundo submarino !!! 
Gracias a todos por vuestra ayuda, hicimos un buen trabajo!! Os esperamos en el siguiente Eco Day!!
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Why be in the water with sharks?

Why be in the water with Sharks Sharks the world’s oldest predators, highly adapted and one of the oceans most diverse array of creatures. With up to 500 species, ranging in size and shape from the magnificent Whale shark to the smaller port Jackson shark. They are probably one of the world’s most misunderstood creatures, and due to that one of the worlds most threatened. However to get a better understanding of how these dinosaurs exist amongst us, and play such an important role in our oceans, we may need to venture in to their home. Doing this to most would seem dangerous, due to their wild reputation although most studies show that sharks are in fact afraid of any humans, that they come across in their habitat. Our endless fear for the big sharp teeth and unpredictable behaviour. Makes most think twice about jumping in to the water with these big fish. Freediving, the art of controlling our natural breath holding capabilities is something that would make us more like fish than any other water sport we have found. No bubbles, no bulky equipment make them silent and elegant as they interact with the underwater world. Sharks are very adapted to detect and also be disturbed by changes to their environment, and so as a Freediver those changes are minimalistic. Enabling you to really experience a world undisturbed by change, reducing the stress to any animal in the surrounding area.

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Guillaume Néry

This year 2017, we had the pleasure to get the Tao Festival running in Koh Tao for the very first time.

Because every artistic discipline feeds on other expressions to evolve together, TAO Music & Underwater Festival is a cultural, artistic and eco-friendly event.


The festival mixes music from Thai & Myanmar best Indie Band to abstract Hip-Hop, Electro and House. Dance, performance, visual art, mapping and graffiti while placing the environment at the center of its concerns.

Three days and three nights of celebration for a single cause : the protection of the environment. To be more efficient and in order to rally as many people as possible to its cause, the festival will appeal to all licensees of the largest diving and freediving apnea clubs on the island, and Big Blue Freediving get involved on it.






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Guillaume Néry is a French free-diving champion, specialised in deep diving. With just one breath, he can dive to -126m below the water's surface. As a multiple world record holder and the double reigning world champion, Guillaume's goals go well beyond the simple realm of sport. With a perfect combination of aesthetics, performance, films and exploration, Guillaume practices his discipline like an art form, it has become his way of life.


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Big Blue Freediving organised a Freediving workshop for all people interest, and Guillaume was talking about advanced breathing techniques to improve the performance of deep dives, and also impart a specific Yoga class to practice the great stretching to get the best flexibility for freediving training and adaptation under pressure in deeps.


Was a really great experience !!!



When Big Blue scuba instructors become Freedivers!!!


When you love the sea. . .

At Big Blue we offer many different courses, scuba diving courses, conservation courses, tech diving, marine ecology, shark ecology, underwater photography. . .but as a professional,  we always want to go to the next step.

All our very professional and experienced team always want to discover new ways to enjoy the sea.

And then it's when they start getting into Freediving!!! Becoming a new addicts, understanding much more about what our body tell us and what the sea want to show us, always getting part of the environment, we become part of it.

During the course, they learn much more about physiology,  understanding of the mammalian dive reflex, how our body adapt in the water, how we need to breath properly to conserve oxygen. Discovering how the sea affects in the body, and how to get comfortable with, going with all the relaxation skills.

We played so much in the swimming pool, practicing skills and rescue procedures, and also in the sea, with a deep training.

They all been impressed on how much it's challenging a Freediving course, to learn about our own improvements, and to get deeper, or to hold the breath longer than the spect.


Rachel Linarts (Big Blue Conservation)

Sonia Scott (Scuba Diver Instructor)

Paco Quiñoy (Tech Instructor)



The Moken people of the Andaman Sea


The Moken people :

‘the sea nomads’   'the gipsys of the sea'

A group of approximately 800 islands claimed by both Burma and Thailand. Most of the 2,000 to 3,000 Moken live asemi-nomadid hunter-gatherer lifestyle heavily based on the sea, though this is increasingly under threat.


Their knowledge of the sea enables them to live off its fauna and flora by using simple tools such as nets and spears to forage for food. What is not consumed is dried atop their boats, then used to barter for other necessities at local markets. During the monsooon season, they build additional boats while occupying temporary huts. Because of the amount of time they spend diving for food, Moken children are able to see better underwater due to accommodation of their visual focus.

Some of the Burmese Moken are still nomadic people who roam the sea most of their lives in small hand-crafted wooden boats called kabang, which serve not just as transportation, but also as kitchen, bedroom, and living area. However, much of their traditional life, which is built on the premise of life as outsiders, is under threat.

Aside from ancestor worship, the Moken have no religion


The Moken identify in a common culture, and speak the Moken lenguage.

However, the Moken face an uncertain future as their population decreases and their nomadic lifestyle and unsettled legal status leaves them marginalized by modern property and immigration laws, maritime conservation and development programs, and tightening border policies.


The children of this tribe poses the ability to move so freely under water, so they are being called the dolphin-children!

When the tide rises the children of tribe tend to be more under water than above.


They enter the waters and swim to great depths. Not only do they have the possibility to sink themselves without weights, they see perfectly clear underwater without goggles. This usually isn’t the case for us, when we open our eyes under water, our vision completely blurs.

Their eyes are completely adjusted to the conditions underwater. When the dolphin-children open their eyes, their irises get smaller and they increase their depth of field.  Also the actual shape of their lens changes, which is called accommodation. This is a similar adaptation to what dolphins do.


Apnea Diver, the new App for freedive trainings

Apnea Diver is a training app for free divers, apnea swimmers and spearfishing enthusiasts which expands lung capacity and the amount of time you can spend underwater. In fact, Apnea Diver static training tables are beneficial for all sportsmen as it increases lung capacity which improves general aerobic performance. The Apnea Diver app contains a series of apnea breath hold static tables which will improve your lung capacity if practiced three to four times a week. A simple way to improve lung capacity and ability to hold your breath for free diving and other sports. The app gives users the option to set their maximum breath hold time (show stopwatch screen and saving) by testing this with a stop watch or by entering this manually in the setting page. Your maximum breath hold times will be saved to the in-app log book so you can keep track of your progress. Settings for the static tables are automatically adjusted according to your maximum breath hold time (show settings page) or can be altered manually if they user has specific requirements. There are 3 breathing training tables: CO2- aimed at increasing carbon dioxide expulsion, O2 – aimed at increasing oxygen intake and Pranayama – aimed at warming up the lungs in preparation for a dive or used for meditation and relaxation. Users can select the number of cycles they wish to do for each exercise, and all completed tables will be recorded in the log book.

Here’s what to expect when you participate in our Level 1 Freediving Course


We often have customers who cometo us with no knowledge of Freediving or what they would learn on a Freediving course. So here’s what to expect when you participate in our SSI Level 1 Freediving course.

The SSI Level 1 Freediving course is an introductory course with no previous experience required. In this two day course you get to experience what freediving is all about! You’ll become relaxed and comfortable in the water and you’ll learn how to dive safely to depths of up to 20 meters on a single breath; yeap you read right, on one single breath!

Believe it or not, approximately 95% of our students reach 20 meters, on day two of our course, and we bet that you are one of them!   

Throughout the course you will be introduced to four different freediving disciplines.

  1. Static Breath Hold (STA) – breath hold, above water
  2. Dynamic Diving (DYN) – horizontal under water swimming
  3. Constant Weight Training (CWT) – descends/ascends using fins and/or with the use of his arms without pulling on the rope
  4. Free Immersion (FIM) - vertical underwater swimming without the use of propulsion equipment, but only by pulling on the rope during descent/ascent

The SSI Level 1 Freediving course includes;

  • theory sessions (Equipment, Physiology, Skills and the Environment),
  • freediving breathing techniques, for before and after diving,
  • dry breath hold and relaxation session,  
  • dynamic apnea (horizontal underwater swim) and safety procedures,
  • two (2) open water depth dives (along a secured line) where students will progressively learn about technique including adequate finning, body positioning, becoming more streamlined and carrying out safety procedures.

Here’s a testimonial from our ex-student Heikke R.

“...after my Freediving course I started to think of Freediving on a whole new level and even snorkelling became much more interesting now that I had the skills to have longer, safer and deeper dives. In this course you learn to challenge yourself and, for some, it is the beginning of a new hobby! If you are thinking about of doing this course, TAKE IT!”.

To sum up why we love freediving and why you should learn with us; freediving really pushes you to challenge yourself, it builds your confidence and it really is an experience not many people get to have. Still not sold? Contact our outgoing staff who will happily answer any questions you may have (This email address is being protected from spambots. You need JavaScript enabled to view it.). 

Is Freediving Hazardous?


It is without fail that when we speak about the sport of Freediving people ask us ‘is Freediving hazardous?’. 

Like any sport Freediving has risks, however, many of the risks can be eliminated, or avoided, by the application of correct training and knowledge.

The United States Apnea Association (USAA) states that ‘without proper training, education, and especially supervision, one small miscalculation in staying down just a little too long, or moving too much at depth could prove tragic – even fatal. Knowledgeable, competent and qualified freediving buddies must ALWAYS be used. Proper training and education is mandatory to successfully understand proper breathing techniques, proper equalizing, proper underwater motions, and proper buddy techniques – including freediver rescue. Without this specialized training the potential for ear injuries, lung injuries, and unconsciousness due to blackout is high. See Freediving Safety for more information.

At Big Blue Freediving we pride ourselves on small groups and safety. We teach a maximum of four (4) students per course and provide individual feedback to each student. Our experienced head instructor Rakel loves introducing people to Freediving and every customers leaves feeling more connected to themselves and the sea!

For more information on training courses and packages please surf our website.


Want to glide alongside Black Tip Reef Sharks?



If your like most freedivers, you most likely have a passion for the ocean and a heightened curiosity to interact with marine life.

It’s no secret that one of the best things about being a Freediver is that it allows you to swim alongside marine life and interact closer than any scuba diver ever could. We have been counting our lucky stars because at Big Blue Freediving we have been spoilt over the past few weeks with countless Whale Shark encounters as well as sightings’ of, up to eight, baby Black Tip Reef Sharks along the coral reefs at Sai Nuan Beach!

Weather on Koh Tao has been a mix of hot and sunny and hot and stormy. The really good news, though, is that despite the continuing weather changes, our diving conditions have been fantastic with visibility of up to 20-30 meters. If you have ever been intrigued by, or interested in, the sport of Freediving we encourage you to give it a go. You will be surprised at the depths you will reach.

One of our favourite affirmations that we like to remind ourselves of, at Big Blue Freediving, is to remember that ‘life gets boring when you stay within the limits you already know’. Life is about experiences, trying new things and pushing your limits. Take advantage of the life you have been given, live in the moment and challenge yourself each and every day.  

How to make a difference. Earth Day 2015



It’s no secret that destinations’ with high visitation numbers can have a negative impact on popular tourist destinations such as Koh Tao. The responsibility of looking after our environment falls on both the tourist as well as the local. Today, as a community, we take responsibility and come together to clean up Koh Tao, Thailand.

So, it’s no secret that every once in a while you come across a cause that is too important to ignore and Earth Day is one of them. Trash Hero (a Koh Tao community group) is participating by hosting Koh Tao’s Biggest Clean Up on 22 April 2015.

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Countless dive schools, restaurants, resorts and other local businesses are taking part in Earth Day 2015. Each participant/business has been given a dedicated zone to clean up and all rubbish will be collected at 4pm.

Big Blue’s Marine Biologist has worked hard to promote this event and last night Rachel briefed Big Blue staff on how minor changes can be made to make a difference. Believe it or not it’s the small changes, such as providing your own eco-friendly bag when ordering takeaway/purchasing goods that can have a positive impact on the environment.

To further participation and to increase the communities enthusiasm Big Blue Diving has promoted a 2,000 bht prize for the individual who collects the most amount of cigarette butts. Winner to be announced later today.

Remember: it’s never to late to make a difference. If you see some rubbish, please pick it up and pack your eco-friendly bag. It’ll always come in handy.

Happy Earth Day Everyone!

For more information on Earth Day visit: 

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