Courses
Cavern Diver
Diving within the light zone of an overhead environment — the first genuine step into overhead training.
Explore →THE DIVER’S RESOURCE CENTRE
Better questions. Useful answers.
Find a lesson, look up a word, check the forecast or find the manual for your gear. Bring your next diving question here.
FIND YOUR NEXT ANSWERNEW / INTERACTIVE TOOLS
Planners, checklists & logs
Eight tools to organise a trip, compare courses, keep equipment records and prepare useful notes.
Open the tools →01 / BEFORE YOU TRAVELWeather & dive preparation
Official forecasts, tide information and a worksheet to take to your briefing.
Open the preparation resources →02 / KNOW YOUR EQUIPMENTManuals & manufacturer support
Find the correct documents for your model and prepare a useful support enquiry.
Find your brand →Search places, operators and learning
Search Australian dive sites, dive centres, regions, published guides, courses and definitions in one place. Filter by type to narrow your results.
66 results matching “Buoyancy”Read each page’s review status
Your First 20 Dives
Choose your next course from a real learning need
Use instructor feedback and your intended diving to compare continuing education rather than collecting course names.
Explore →Guides
Cold-Water Diving in Australia
Why a diver certified in 27°C water needs more than a thicker suit to dive Victoria or Tasmania.
Explore →Guides
Decompression Diving
When the option of a direct ascent is deliberately given up, and what that changes.
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Decompression Procedures
Planning and executing dives with a mandatory decompression obligation.
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Divemaster
The first professional rating — guiding certified divers and assisting with training.
Explore →Your First 20 Dives
Enjoy wildlife without making the dive more complicated
Keep observation and photography within the attention available to a new diver.
Explore →Guides
Equipment Retailers
A dive shop and a dive centre are not always the same business.
Explore →Australian Marine Life
Giant cuttlefish: colour, camouflage and the Whyalla gathering
Understand what colour changes can and cannot tell you, and connect species research with seasonal trip planning.
Explore →Guides
How to Plan Your First Australian Dive Trip
A practical sequence for choosing the region, season, operator, equipment and backup days for an Australian diving holiday.
Explore →Your First 20 Dives
Keep a logbook that helps you learn
Record the context, feedback and unresolved questions that make the next dive better organised.
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Learning to Dive
What entry-level scuba training actually involves, and how to judge a course before you book it.
Explore →Guides
Learning to Dive: Tropical vs Temperate
Certifying in Cairns or in Melbourne produces different divers — here is how, and why it matters.
Explore →Safety guides
Lung overexpansion and breath-holding
Compressed gas expands as pressure falls, including during the shallow part of an ascent.
Explore →Safety guides
Make the buddy check meaningful
A buddy check is a practical inspection and a conversation about how the equipment works.
Explore →Safety guides
Marine life and injury prevention
Observe wildlife with enough space that neither the animal nor the diver needs to react defensively.
Explore →Safety guides
Maximum operating depth is a boundary
A gas’s maximum operating depth is a planning limit, not a target to reach.
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Open Water Diver
The entry-level certification that allows independent recreational diving to around 18 metres.
Explore →Guides
Open Water vs Advanced Open Water
What the second certification actually gives you, and whether it is worth taking straight away.
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PADI Advanced Open Water Diver
Try different types of diving with an instructor and develop experience beyond entry-level training.
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PADI Deep Diver
Develop planning and awareness for deeper recreational dives under appropriate instruction.
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PADI Open Water Diver
Build the knowledge and practical skills for your first scuba certification. Learning takes place through theory, confined-water practice and open-water training.
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PADI Open Water Scuba Instructor
Prepare for teaching through instructor development and the required evaluation process.
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PADI Rescue Diver
Develop awareness of problems, self-rescue, assistance and coordinated responses to diving emergencies.
Explore →Looking for a place or an operator?
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