Learn to dive on the Great Barrier Reef with a four-day PADI Open Water course departing Cairns. The program blends classroom and pool training with two full-day outer-reef cruises to earn your internationally recognized certification.
More ways to explore the area's outdoor wonders
The first breath underwater changes the way you read a place: light becomes a moving roof, and the reef rearranges itself into corridors of color that dare you to follow. Meet your instructor in Cairns, step onto a catamaran that hums toward the outer Ribbon Reefs, and spend four days learning the fundamentals that turn surface swimmers into certified divers.
Difficulty
moderate
Duration
4 days
Fitness Level
Moderate fitness: comfortable swimming, able to perform surface swim and float for basic skills.
Wildlife
History
The reef’s living structure began building after the last ice age, and the area holds cultural significance for local Indigenous groups who have fished and navigated these waters for generations.
Conservation
Stick to reef-safe sunscreen, avoid touching coral, and follow instructor guidance—education and low-impact behavior help protect sensitive reef habitats.
Reserve your spot on the 4-Day PADI Open Water Dive Course - Learn to Dive on the Great Barrier Reef today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Medical clearance if over 45
Divers over 45 or with certain medical conditions must bring a 'Fit to Dive' clearance from a physician before the course starts.
Pack reef-safe sunscreen
Use biodegradable sunscreen and bring a long-sleeve rash guard to reduce sun exposure during surface intervals.
Practice basic swimming
You’ll need to complete a basic swim and float test—review breathing and mask-clearing techniques in advance to build confidence.
Avoid flying after diving
Plan travel so you do not fly within 24 hours of your final dives to prevent decompression risk.
Swimsuit and quick-dry layers
Comfortable swimwear and a quick-dry top for boat time and pool sessions.
summer
Reef-safe sunscreen and hat
Protects skin during surface intervals and reduces sunscreen runoff onto corals.
summer
Lightweight fleece or windbreaker
Good to have for early morning transfers and cool, windy boat decks.
winter
Personal mask (optional)
A well-fitting mask speeds skill practice and improves comfort during dives.