Scuba Diving on Koh Tao

If you haven’t tried scuba diving before then you’re in for a real treat. As you descend down into the water you surround yourself with a different world. Colourful coral, schools of fish, dangerous predators, underwater caves and tunnels, shipwrecks, drop offs into the void, night dives, complete weightlessness as you float along the current trying to take everything in.


The best way to get started is with an Open Water Dive Course with PADI or SSI. From there you can progress to your Advanced Open Water and even your Dive Master with enough specialty courses and logged dives. Koh Tao is the most popular place for diving in Thailand, and the island itself is a fun place to spend a few weeks or even months while you try to visit every dive spot.

If you’re not keen to dive you can still snorkel your way around some amazing spots with a chance to get up close with black tip reef sharks and turtles at Shark Bay along with many other great spots. Rent a motorbike and explore the different beaches or join in on one of the tours that take you to the most popular spots.

Koh Tao

Diving on Koh Tao

Choosing the right dive center

There are a huge number of dive schools on the island all with competitive rates and most include free or cheap accommodation near the dive shop. There are a few things to think about while choosing your dive school:

  • Talk to the staff: it’s important that you get along with your dive instructor and other staff on your boat, that they make you feel comfortable and that you’re not just another face giving them your money to dive.
  • Find out what your course entails: how many days it takes, the number of dives, which equipment is provided, what you’ll be learning, any exams you have to take, the total costs including books, etc.
  • Check out the equipment: check masks and snorkels, BCDs and regulators for any visible damage, if you don’t know what you’re looking for ask how new the equipment is and they will be happy to tell you what each piece is for.
  • Check out the facilities: do you get accommodation with your course? If your accommodation isn’t nearby you may want somewhere to shower and change, you may need somewhere to store valuables, or to buy a piece of your own equipment if you don’t want to borrow theirs.
  • Ask any and all questions you have, no matter how small or silly they seem: if you’re nervous about diving you want to feel confident about it before you take the plunge, and you want to know that your dive instructor will be willing to take the time to listen to your queries and look after you.

I decided to do my Open Water and my Advanced with Phoenix Divers. Our instructor Stephan was awesome and made every dive feel safe and enjoyable. We had a small class of four people and very nice accommodation across the road from the shop at AC Resort. I would definitely recommend this dive shop!

Koh Tao

**You can now do a wreck dive off the coast of Koh Tao! They purposely sunk an old ship to create a habitat for all that sea life, I got to dive it three days after it had sunk, and I hope to go back there in a few years to see how much it’s changed!**


Open Water Dive Course

Doing your Open Water teaches you the basics of diving and gives you the confidence to enjoy it. With your OW you can descend as deep as 18 meters (60 feet) which is deep enough for many dive sites. It’s usually a three day course with a pool dive and four ocean dives.

Day 1 – Our first day was spent watching videos, going over the equipment and getting into the pool to practice some techniques such as loosing your reg, breathing without a mask andย  what to do if you run out of air. It was great to practice these things in a controlled environment and even though I was nervous it was all fine by the end of the day. We were set homework to complete with our SSI dive book.

Day 2 – We watched a video that explains the dangers of lung over-expansion, nitrogen narcoses and decompression sickness and how to avoid getting yourself into trouble before completing a written exam. Our first two ocean dive went smoothly, they were mainly to practice the techniques learned in the pool on our first day.

Day 3 – We had two more ocean dives, with a little bit of time spent on our skills from the last two days to complete the course successfully. The rest of the time was spent surrounded by huge schools of barracuda and spotting giant groupers, clown fish, angel fish, butterfly fish and many others. An underwater videographer followed us around for both dives and put together an amazing movie, which is very pricey but makes for a great souvenir of your now completed Open Water Course!

Diving on Koh Tao

Advanced Open Water Dive Course

People who choose to do the Advanced Open Water will do a Deep Dive and a Navigation Dive so, when qualified, you can descend as far as 30 meters (100 feet). You also have a choice for your remaining three dives from many other Adventure Dives including night dive, wreck dive, underwater photography or fish identification.

Day 1 – Our first day of the Advanced consisted of our Deep Dive and a Buoyancy Control dive which gives you a big confidence boost. We then met back up at the boat just before sunset for the Night Dive, it’s well worth choosing this as one of your options, it’s a whole other world down there in the dark!

Day 2 – Our first dive of the morning was our Navigation Dive which included compass navigation with our own dive computers. For the final dive I chose an Underwater Photography dive which was great fun and a good skill to have if I ever invest in a decent underwater camera!

Congratulations you little scuba diver you! Now that you’ve qualified you can take your bad self to any dive shop in the world and get into the water; whether it’s a ocean dive, a lake dive or even an underwater cave dive! Keep your log book safe as a record of what you’ve accomplished, you’ll need 40 logged dives to start your Dive Master!

Koh Tao


Back on dry land…

If you’re starting to turn into a prune from all that time spent underwater then there are plenty of other options to keep you entertained. Relax of any of the pristine white sand beaches. Watch the fire shows at Lotus Bar every night. Get involved with the Ladyboy Cabaret. Drink buckets at Diza. Find kittens to cuddle. Watch the sunset. Enjoy life!

Koh Tao

Koh Tao

Koh Tao

Leaving Koh Tao…

Two words: slave ship. That is your best option for leaving the island. Two floors of an old, old wooden ship crammed full of way too many people sleeping on thin mats on the ground with a squat toilet at the back. Leaves Koh Tao at 9pm and arrives into Suratthani at 5:30am. Valium will help… as will a bottle of whiskey. If the seas are rough you’re in for a real treat, maybe avoid it if you get sea sick easily.

Koh Tao

Koh Tao

You can view the full album here.

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4 Replies to “Scuba Diving on Koh Tao”

  1. I love the run through of diving in Koh Tao as I’ve been looking for something like that, thanks! I wish I read this a couple months back. We’re only staying on Koh Tao for 4 days and plan on doing a day “discovery dive” because neither of us have dove before. They offer two dives that way, so hopefully that’ll be enough for us!
    The slave ship looks surreal… What was your experience on that like? And how, just how, did you not take a kitty home as a souvenir? They look so cute!

    1. Thanks for your comment! As you have four days on Koh Tao that is enough time to fit in your Open Water, (unless your DS dives are already booked) it is worth considering as it means you will then be certified divers! The Discover Scuba dives are just fun dives that don’t teach you anything but the absolute basics and don’t give you any qualifications for future diving. Just something to consider… The OW is a bit more expensive but it will fill you with confidence, even as first time divers, and you get four ocean dives out of it over three days, plus your certified to go deeper than with the Discover Scuba dives! You might even find a dive shop that can fit it into two days if you’re pushed for time.

      As for the slave ship… oh boy… The first time I went on it, it was pretty calm and I slept most of the way. The second time was so rough that waves were crashing through windows and people were puking everywhere, so I had a valium and slept the whole way again ๐Ÿ˜€ It makes for a good story!

      1. Thanks for replying, we’ve really thought about the OW classes and think that the DS fits us because we spend Christmas in Koh Tao and wish to spend it relaxing on the beach. My partner is somewhat bummed that we won’t be at home for Christmas and we made a deal that we’ll be relaxing.
        Boy, that slave ship is a great story! Thanks for the pictures!

  2. I found Koh Tao to be paradise. I really loved it there, and wish I had spent more time there. I only had 4 days, so I did two dives. The sea life was pretty good, but visibility was not perfect. If you get to Indonesia, Flores and the Komodo islands are some of the best diving I have ever seen in my life.Thanks for sharing.

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