A four-day Rescue Diver and EFR course on Koh Chang turns theory into practiced response—CPR mannequins, defibrillator drills and real open-water rescue scenarios. Learn how to prevent and manage dive incidents while training in warm Gulf of Thailand waters.
More ways to explore the area's outdoor wonders
You step off the long-tail into warm green water and the island exhales around you—halting surf on rocky points, palms ruffling over a steep jungle spine. Over four days the ocean stops being a backdrop and becomes an active partner: currents testing your timing, swell that teaches buoyancy, and a reef that demands respect.
Difficulty
challenging
Duration
4 days (approx. 8–10 hours/day)
Fitness Level
Good cardiovascular health and comfortable swimming ability; expect repetitive rescue drills and to tow/assist divers.
Wildlife
History
Koh Chang’s economy shifted from selective logging to tourism after the area was designated part of Mu Ko Chang National Park; local villages retain fishing traditions.
Conservation
Training takes place in a protected marine park—minimize impact by not touching coral, using reef-safe sunscreen and following local park regulations.
Reserve your spot on the Rescue Diver and EFR ( Start at Koh Chang) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring proof of certification
Carry your Open Water certification card and logbook — instructors require prior qualification before practical rescue dives.
Pay the park fee in cash
National Park entrance (~400 THB per diver) is not included—have local currency ready at the pier.
No flying soon after diving
Avoid air travel for at least 18 hours after your last dive to reduce decompression risk.
Use reef-safe sunscreen
Choose mineral-based sunscreen and avoid touching coral during training to protect fragile reef life.
Open Water certification card & logbook
Proof of prior training is required to participate in the rescue module.
Personal dive computer
Helps monitor no-decompression limits and surface intervals during repetitive training dives.
Mask, snorkel, fins (personal)
Familiar equipment improves comfort during repeated drills and surface swims.
Reef-safe sunscreen & swim shirt
Protects your skin and the coral environment during long surface periods.