Three days transforms a nervous surface swimmer into a confident diver. This PADI Open Water course on Koh Chang combines pool skills with open-water dives on vibrant reefs around Koh Rang National Park.
More ways to explore the area's outdoor wonders
The boat slips off the pier and the horizon opens: warm Andaman-blue water, a steady engine, instructors calling hand signals across the deck. Over three compact days you move from classroom to pool to reef, each stage tightening your confidence like a well-trimmed weight belt. By the final dive the coral gardens of Koh Chang and Koh Rang National Park start to feel like familiar rooms.
Difficulty
moderate
Duration
3 days
Fitness Level
Basic swimming ability and reasonable mobility are required; you should be comfortable treading water and climbing boat ladders.
Wildlife
History
Mu Ko Chang National Park was established in the early 1980s, and the islands’ fishing communities have shaped local marine use and conservation practices.
Conservation
Operators encourage reef-safe sunscreens, no-touch diving, and buoyancy control to minimize reef damage; park fees support local protection and monitoring.
Reserve your spot on the Padi open water diver course, become a diver in 3 days today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Hydration and rest
Three days of training and boat time requires good hydration and sleep — carry a refillable bottle and drink before and after dives.
Bring a personal mask
Borrowed masks work, but a well-fitted personal mask reduces fogging and speeds skill learning in confined-water sessions.
Avoid flying after diving
Do not fly within 18 hours of your final dive to reduce decompression risk; schedule flights accordingly.
Use reef-safe sunscreen
Apply mineral-based sunscreen and cover up between dives to protect both skin and coral.
Well-fitted dive mask
A good mask prevents leaks and fogging, making skill drills and open-water dives easier.
Shorty wetsuit (3mm) or rashguard
Thermal protection and skin coverage are handy for long surface intervals and sun protection.
Reef-safe sunscreen
Protects your skin and the coral ecosystems; choose a mineral formula.
Seasickness medication or wristbands
Helpful if you’re prone to motion sickness during boat transfers to dive sites.