Fun Diving

with Hydronauts


Scuba diving in Koh Tao is unique from other places in the world because of the island’s close proximity to 25+ varied dive sites. Almost every dive site on Koh Tao is within a 10-45 minute boat ride with the infrastructure to support the number of divers who come to Koh Tao to go diving. The island is surrounded by tropical coral reefs and is home to countless species of marine life.

When scuba diving in Koh Tao, you’ll discover coral gardens, shipwrecks, underwater pinnacles, coral walls and artificial conservation reefs. The Gulf of Thailand is known for its consistently calm and clear waters, and incredible sunsets, which offer ideal conditions for a relaxed and scenic experience.

Our dive guides at Hydronauts are highly-trained, local area experts that have spent years scuba diving the sites around Koh Tao. We ensure that your guide is not only guiding your dives safely but that they take the extra time to improve your skills as a diver and share what they know about the local ecosystem – above and below the water.

We tailor your dives to your certification and comfort levels and always guarantee small groups of no more than 4 divers to a dive guide.

We look forward to diving with you.


Fun dives are 1,000 THB per dive and the boat goes out for 2 dives each trip. 

Discounts can be discussed on an individual diver basis. So if you bring all your own equipment or are already a professional diver, be sure to have a word with our management and we will see what we can do for you.


Fun Diving Packages

6 Fun Dive Package – 5,400 THB

8 Fun Dive Package – 6,800 THB

10 Fun Dive Package – 8,000 THB

Boat Schedule

Morning boat

06:15 meet up, 06:45 departure right from the beach. 

We typically schedule our deeper and more advanced dive sites in the morning. We return before 12:00. 

Afternoon boat

11:45 meet up, 12:15 departure right from the beach. 

Afternoon dive sites are generally shallower sites closer to the island. We return around 17:00. 


Must be a certified diver with an internationally recognized agency. 

Must be medically fit to dive. 

Haven’t dived in a while? No worries! Book a Scuba Refresher and fun dive with one of our Divemasters!

More questions? Reach out to us! We’d love to help you and do our level best to respond to all inquiries as soon as possible.


Flying after your dives? Be sure to give yourself an 18-hour window after your final dive.

Need a place to stay? We are a beachfront diving resort! We offer rooms from mixed dorms, double bed rooms, family rooms, and bungalows for weekly or monthly rent! You can book a room here

Please keep hydrated. Remember to drink plenty of water before and after your dives.

Bring sunscreen (preferably reef safe) and apply it an hour before entering the sea to protect marine life.

Why Choose Hydronauts?​

RAID Instructors​

Our experienced instructors are hand-picked, highly trained, and passionate about scuba diving. We tailor each course and dive to your unique needs.

Beachfront Diving Resort​

Southwestern-facing property including a dive shop, hotel, training pool, cafe & restaurant, dive boat, and beach bar. We offer diving & accommodation packages for every budget.

Guaranteed Small Groups

We guarantee small groups of no more than four students to an instructor or dive guide so that you get the individual attention you deserve.

State-of-the-Art Equipment

We choose to dive and teach in Backplate & Wing BCD with a Long-hose, Short-hose regulator configuration favored by technical divers.

Dive Anywhere in the World

Upon completion of your RAID scuba diving course, you will be issued with an e-certification card that recognizes you as an internationally certified scuba diver.

Low Carbon Footprint

We make every effort to reduce our footprint and use of paper and plastic. All our course materials are hosted online giving you access for life.

Reserve your space now