Refine your diving with a focused two-day PADI Advanced Open Water course on Koh Chang. Five dives—Deep and Navigation plus three electives—deliver practical skills, certification, and guided reef time.
Refine your diving with a focused two-day PADI Advanced Open Water course on Koh Chang. Five dives—Deep and Navigation plus three electives—deliver practical skills, certification, and guided reef time.
A low-backed longtail slips away from the pier and the island’s green ridge falls behind you like a turning page. Salt and diesel mix on the air, and the boat hum drops to a patient rhythm as instructors brief the five dives ahead: two required—Deep and Underwater Navigation—and three electives chosen to sharpen buoyancy, drift techniques, wreck or fish-ID skills.
Verified experiences and guided adventures in the surrounding area.
Operated by Dolphin Divers · Koh Chang, Trat Province
A low-backed longtail slips away from the pier and the island’s green ridge falls behind you like a turning page. Salt and diesel mix on the air, and the boat hum drops to a patient rhythm as instructors brief the five dives ahead: two required—Deep and Underwater Navigation—and three electives chosen to sharpen buoyancy, drift techniques, wreck or fish-ID skills.
Koh Chang sits off Thailand’s eastern shore in Trat Province; its volcanic bedrock and uplifted reefs create steep drop-offs and coral gardens that make for instructive advanced dives. The island’s fishing villages long preceded tourism, and the dive culture here blends local fishers’ knowledge with modern PADI standards—expect practical, safety-first teaching shaped by decades of regional diving.
Below the surface the current can feel like an active partner, pushing you along ledges and across bommies where hawksbill turtles and blacktip reef sharks patrol. Visibility and conditions change with the monsoon cycle; instructors plan dives around tides and wind, emphasizing air management and depth planning for the deep dive.
Practical guidance: arrive with recent logbook entries, bring a personal mask and a dive computer if you have one, and hydrate before briefings. The course spans two days with shore or boat pick-up, full gear rental and a PADI certificate included. Expect classroom segments, surface intervals, and five supervised open-water dives.
This is a skills course—precision, patience and basic fitness matter more than speed. Improve your navigation, deepen your comfort in open water, and leave with loggable dives and a clearer plan for advancing your underwater experience.
moderate.
2 days (approx. 48 hours).
Moderate fitness: able to complete multiple dives, manage equipment, and perform basic swimming and mask-clearing skills.
Yes—participants must hold a PADI Open Water certificate or equivalent from another agency before starting the Advanced course.
Minimum age is 12 years; younger divers must meet PADI youth requirements and demonstrate appropriate maturity and skills.
Yes — full diving equipment rental is included, but many divers bring a personal mask or computer for comfort and continuity.
You’ll receive documentation after completion; the digital/e-cert is typically issued promptly and a PADI card follows per PADI processing.
Koh Chang was traditionally a fishing and timber outpost; tourism and diving expanded in the late 20th century as improved access exposed rich reef systems.
Coral health is sensitive here—use reef-safe sunscreen, avoid touching reefs, and choose operators that follow no-touch and mooring-buoy protocols.
Dolphin Divers operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




A low-backed longtail slips away from the pier and the island’s green ridge falls behind you like a turning page. Salt and diesel mix on the air, and the boat hum drops to a patient rhythm as instructors brief the five dives ahead: two required—Deep and Underwater Navigation—and three electives chosen to sharpen buoyancy, drift techniques, wreck or fish-ID skills.
A low-backed longtail slips away from the pier and the island’s green ridge falls behind you like a turning page. Salt and diesel mix on the air, and the boat hum drops to a patient rhythm as instructors brief the five dives ahead: two required—Deep and Underwater Navigation—and three electives chosen to sharpen buoyancy, drift techniques, wreck or fish-ID skills.
Koh Chang sits off Thailand’s eastern shore in Trat Province; its volcanic bedrock and uplifted reefs create steep drop-offs and coral gardens that make for instructive advanced dives. The island’s fishing villages long preceded tourism, and the dive culture here blends local fishers’ knowledge with modern PADI standards—expect practical, safety-first teaching shaped by decades of regional diving.
Below the surface the current can feel like an active partner, pushing you along ledges and across bommies where hawksbill turtles and blacktip reef sharks patrol. Visibility and conditions change with the monsoon cycle; instructors plan dives around tides and wind, emphasizing air management and depth planning for the deep dive.
Practical guidance: arrive with recent logbook entries, bring a personal mask and a dive computer if you have one, and hydrate before briefings. The course spans two days with shore or boat pick-up, full gear rental and a PADI certificate included. Expect classroom segments, surface intervals, and five supervised open-water dives.
This is a skills course—precision, patience and basic fitness matter more than speed. Improve your navigation, deepen your comfort in open water, and leave with loggable dives and a clearer plan for advancing your underwater experience.