Sharpen your scuba skills off Koh Chang with PADI’s Advanced Open Water program: five dives over several days that push your depth and navigation limits while letting you pick three specialties. Ideal for divers who want confidence, deeper dives and targeted skill clinics.
More ways to explore the area's outdoor wonders
The boat cuts through warm Gulf of Thailand water and spray sketches light across the deck as you prepare for your first training dive. Around Koh Chang, reef slopes and patchy bommies slide beneath the surface, and your instructor briefs the group about the day’s objectives: a deep dive and a navigation dive, then three specialty dives of your choosing.
Difficulty
moderate
Duration
3–4 days (≈48 hours)
Fitness Level
Moderate fitness and comfort in open water; ability to swim and manage basic scuba tasks for multiple dives across days.
Wildlife
History
Koh Chang’s maritime communities have been harvesting and trading seafood for generations; the island’s western harbors grew with small-boat routes to Trat and the mainland.
Conservation
Local dive operators encourage reef-safe sunscreen and buoyancy training to reduce contact with coral; support operators who follow no-take and no-touch policies.
Reserve your spot on the Padi Advanced open Water Diver Courses (Start at Koh Chang) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring your logbook and certification
You must be a certified Open Water diver and should bring your current certification card and logbook for instructor sign-offs.
Watch the flying rule
Do not fly for at least 18 hours after your final dive to reduce decompression risk.
Hydrate and rest between days
Diving multiple days is dehydrating—drink water and avoid heavy alcohol the night before dives.
Choose electives to match goals
Pick specialty dives (e.g., buoyancy, wreck, night) that address specific skills you want to improve.
Personal dive computer
Tracks depth and bottom time accurately—essential for multi-day training and safe dive planning.
Mask, snorkel and fit-tested fins
Comfortable, well-fitting kit improves air efficiency and confidence underwater.
Thin neoprene shorty or 3mm wetsuit
Protects against sun and minor scrapes while remaining comfortable in warm tropical waters.
summer
Reef-safe sunscreen and rashguard
Protects skin topside and reduces sunscreen chemicals that harm coral reefs.
summer