Advanced Open Water Diver Course Koh Chang – Deep Diving and Specialty Training

Advanced Open Water Diver – Level Up Your Diving Skills

Build on your Open Water skills with 5 adventure dives including deep diving (30m), navigation, and specialty training. The perfect next step to unlock new dive sites and grow your confidence underwater.



Advanced Open Water Diver – Level Up Your Diving Skills

Advance Your Diving – In Just 2 Days

The Advanced Open Water Diver Course builds on your Open Water skills with 5 adventure dives – including deep diving (30m), navigation, and optional wreck or Nitrox. It's the perfect next step to unlock new dive sites and grow your confidence.

→ Learn how the AOWD Course works – Step by Step

Open Water Diver

  • Max. depth 18m
  • Basic dive skills
  • Entry-level license

Advanced Open Water

  • Max. depth 30m
  • Adventure dive experience
  • More freedom & sites

⚡ Take the plunge and boost your diving skills today!


Who can join?


What's included

⚠️ Optional



What can you discover?

Join our fun dives and explore vibrant coral reefs, fascinating critters, and majestic marine life — including the legendary HTMS Chang Wreck.

Use our dive site map to plan your adventure or dive deeper into our Marine Life Guide and see what awaits below the surface.


What other divers discovered

Real reviews and experiences from our guests – see what others found on their diving adventures with us!


💬 Choose Your Advanced Course Option

Level up your diving in just 2 days – 5 adventure dives, full gear, and international certification included!

SDI AOWD Student/s

💸 13,490 THB

Advance your skills with SDI! 2 days, 5 dives incl. full eLearning – deeper, better, smarter diving!

PADI AOWD Student/s

💸 13,990 THB

Take the next step with PADI! 2 days, 5 dives incl. basic PDF manual – explore deeper, go further!

📩 Book Your AOWD via Email

→ Not sure yet? Read how the AOWD course works – Step by Step


Student Downloads

Instructor Downloads


Important Note:
Please avoid cannabis use before and during diving. Diving requires full concentration and physical fitness.

No drugs – safety first!

FAQs – Advanced Open Water Diver Course

Do I have to study theory again?

Yes, a short theory module is part of the course – but there's no big final exam like in Open Water. You can study everything online in advance.

How deep can I dive after the course?

As an AOWD diver, you're certified to dive up to 30 meters (Junior AOWD up to 21 meters).

Are the Adventure Dives the same as Specialty Courses?

No – Adventure Dives are introductory dives. You can credit them toward full Specialty Courses like Wreck Diver or Nitrox later.

What equipment do I need?

Everything is included in the course price – all you need is swimwear and a good mood!

What comes after AOWD?

You can continue with the Rescue Diver course or enroll in full Specialties. We're happy to advise you!

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