Glossary
Buoyancy
The upward force exerted by a fluid on an immersed object.
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59 learning resources matching “Buoyancy”Read each page’s review status
Safety guides
Buoyancy and weighting
Stable buoyancy helps protect the diver, the buddy and the environment.
Read resource →Beginner lessons
Buoyancy as a force
Describe positive, negative and neutral buoyancy.
Read resource →Glossary
Neutral buoyancy
A state in which buoyant force balances weight, giving no net upward or downward force from those two forces.
Read resource →Courses
PADI Peak Performance Buoyancy
Refine weighting, trim and buoyancy so you can control position with less unnecessary effort.
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Peak Performance Buoyancy
The short course with the biggest effect on how good a diver you actually are.
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SSI Perfect Buoyancy
Refine weighting, body position and buoyancy through focused practical coaching.
Read resource →Glossary
BCD
Buoyancy control device: equipment with an inflatable chamber used as part of a diver’s buoyancy system.
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Drysuit Diver
Using a drysuit as a second buoyancy system — essential for serious cold-water diving in southern Australia.
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Macro and Muck Diving in Australia
The bays, piers and sheltered sites where small Australian marine life rewards slow diving, careful buoyancy and a very different idea of a good site.
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PADI Dry Suit Diver
Learn how a drysuit changes preparation, buoyancy and in-water responses.
Read resource →Guides
Returning to Diving After a Break
A practical way to rebuild comfort, buoyancy and equipment familiarity before making the destination dive the checkout dive.
Read resource →Brands
SCUBAPRO
SCUBAPRO’s catalogue spans regulators, dive computers, buoyancy compensators, exposure wear, masks and fins. Its range gives divers several equipment categories to compare in one place.
Read resource →Courses
SSI Dry Suit Diving
Learn preparation, buoyancy management and practical use of a drysuit.
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TDI Intro to Tech
Develop the buoyancy, trim, propulsion and team awareness used in technical training.
Read resource →Beginner lessons
Trim and body position
Distinguish orientation from overall buoyancy.
Read resource →Beginner lessons
Understanding the BCD
Recognise the role of a buoyancy control device.
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Underwater Photography
Taking photographs that are worth keeping — which starts with buoyancy, not with a camera.
Read resource →Brands
Zeagle
Zeagle’s website gives particular prominence to BCDs and fit options, including its Personal Fit System. Its featured range includes Ranger and Zena buoyancy compensators, alongside other diving equipment.
Read resource →Courses
Advanced Open Water Diver
Five guided specialty dives that extend depth to 30 metres and introduce navigation and other skills.
Read resource →Brands
Apeks
Apeks presents a technically focused range covering regulators, BCDs, suits, masks, fins and torches. Its catalogue is a useful place to research equipment configurations with an instructor or experienced retailer.
Read resource →Brands
Aqua Lung
Aqua Lung, styled Aqualung on its current website, offers regulators, BCDs, computers and gauges, masks, fins, snorkels and accessories. Explore the category first, then compare the exact model and configuration.
Read resource →Courses
Cave Diver
Full overhead penetration diving, where direct ascent is not available at any point.
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Cavern Diver
Diving within the light zone of an overhead environment — the first genuine step into overhead training.
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