Dive Centres AustraliaSearch
Menu
Dive Centres
Dive Sites
Marine Life
Courses
Technical
Agencies
Dive Shops
Marine Life

Technical training

Sidemount Diver Course in Australia

Carrying cylinders at your sides — redundancy, streamlining and access through restrictions.

Sidemount cave diver following a guideline into a clear limestone cavern
Cave diving, represented by an AI-generated editorial image.

Sidemount configuration mounts cylinders along the diver's sides rather than on the back, which provides full gas redundancy with independent cylinders and a lower, more streamlined profile.

It originated in cave diving, where restrictions make a backmounted twinset impractical, and has since become popular well beyond that context — including with recreational divers who simply find it more comfortable.

It also allows a diver to don and doff cylinders in the water, which matters for shore entries, boat ladders and anyone with back or shoulder issues.

TrackTechnical
PrerequisitesAdvanced Open Water or equivalent; Good buoyancy and trim; Some agencies require Nitrox
Agency equivalentsPADI: Sidemount Diver · SSI: Sidemount Diving · TDI: Sidemount Diver · RAID: Sidemount

Sidemount Diver Course Skills and Content

  • sidemount harness setup and cylinder rigging
  • gas switching between independent cylinders
  • trim and buoyancy with side-mounted cylinders
  • valve and regulator management
  • donning and doffing cylinders in water
  • propulsion techniques for restricted spaces

Sidemount Diver Course: Why divers choose it

Independent cylinders mean a failure affects only half your gas. Streamlining improves in restricted spaces. Cylinders can be removed and handed through a restriction.

For divers with back problems, carrying two cylinders separately to the water rather than one heavy twinset is a decisive practical advantage.

Sidemount Diver Course: Gas management differs

With independent cylinders, a diver must switch regulators regularly to keep the cylinders balanced, both for gas reserves and for trim.

It is a discipline that becomes automatic quickly but has to be learned deliberately — a sidemount diver who forgets to switch ends the dive with one full and one empty cylinder.

Before you enrol in Sidemount Diver

Readiness

  • Stable buoyancy and trim should exist before cylinders are moved to the diver's sides.
  • Recreational sidemount, decompression sidemount and cave sidemount are different training goals.
  • Use the same harness, cylinders and regulators during training that you expect to use afterwards where practical.

What to compare

  • Compare instructors by the environments in which they actually use sidemount, not by the number of equipment brands they sell.
  • Confirm whether the course covers independent-cylinder gas management, shutdowns, propulsion, restriction work and stage handling.
  • A warm-water aluminium-cylinder configuration does not transfer unchanged to southern steel-cylinder diving.

Useful outcome

  • The diver should be able to configure, trim and manage two independent cylinders without losing awareness of gas balance.
  • The qualification does not itself grant decompression or cave privileges.

Questions to ask the instructor

  • Which cylinders will be used?
  • Is the goal recreational, wreck, decompression or cave sidemount?
  • How much confined-water configuration time is included?

Dive Sites for Sidemount Diver Skills

Sites where holding this certification genuinely changes what you can do — not a list of everywhere it is accepted.

Tank CaveOne of the longest underwater cave systems in Australia — advanced CDAA qualification only.Kilsby's SinkholeA limestone sinkhole with water so clear the experience is closer to flying than diving.Piccaninnie PondsA karst spring of extraordinary clarity, with the Cathedral chamber and a chasm beyond 100 metres.

Courses After Sidemount Diver

Courses that build directly on this one.

Cave DiverFull overhead penetration diving, where direct ascent is not available at any point.Advanced NitroxHigh-oxygen decompression gases and oxygen-clean equipment — not ordinary recreational Nitrox.Decompression ProceduresPlanning and executing dives with a mandatory decompression obligation.

Sidemount Diver Prerequisite Courses

Wreck DiverDiving wrecks safely, and understanding where external touring ends and penetration begins.Peak Performance BuoyancyThe short course with the biggest effect on how good a diver you actually are.Cavern DiverDiving within the light zone of an overhead environment — the first genuine step into overhead training.Cave DiverFull overhead penetration diving, where direct ascent is not available at any point.Advanced NitroxHigh-oxygen decompression gases and oxygen-clean equipment — not ordinary recreational Nitrox.

Sidemount Diver Course Names by Training Agency

Agency versions and nearest equivalents. Names, prerequisites and limits can differ, so operators assess the exact certification and experience.

PADITaught as “Sidemount Diver”.SSITaught as “Sidemount Diving”.TDITaught as “Sidemount Diver”.RAIDTaught as “Sidemount”.

Australian Dive Centres Offering Sidemount Diver

Businesses where the relevant capability is verified or advertised. Always confirm the specific course directly.

Scuba World MooloolabaA Mooloolaba SSI Instructor Training Center with air, Nitrox and oxygen, Extended Range and rebreather programmes, and boat trips to up to 15 local reef sites.Go Dive BrisbaneA Windsor dive centre founded in 2000, operating as a PADI Instructor Development Centre and TecRec Centre with a large Scubapro and TUSA showroom.Dive Dive DiveA long-standing Brisbane business associated with technical training alongside recreational courses, retail and servicing. Technical capability should be audited service by service rather than assumed.Manta Lodge & Scuba CentreNorth Stradbroke Island's only full-service scuba centre and an SSI Instructor Training Center, with two boats, on-site lodging, and technical and freediving training.Scuba Haven Port MacquarieA Port Macquarie SSI centre offering air and Nitrox, equipment servicing, and boat, shore and river dives around Port Macquarie and Laurieton.Feet First DiveA Nelson Bay SSI centre running Broughton Island boat dives and Port Stephens shore dives, with rebreather and Extended Range training.Grey Nurse ChartersA PADI-registered dive boat running charters around Port Stephens, Newcastle and Swansea, with PADI courses to Divemaster and TecRec.Dive SwanseaAn SSI Instructor Training Center 60 metres from the Swansea Bridge shore dive, with boat trips to Moon Island and rebreather and Extended Range training.Dive Centre ManlyA Northern Beaches operation with a long-standing presence at Shelly Beach, offering recreational training, boat diving and technical pathways.Frog Dive SydneyA Willoughby PADI 5 Star IDC founded in 1985, teaching recreational through Trimix and rebreather courses with PADI, SDI and TDI, and testing cylinders in-store.Abyss Scuba DivingA Sydney operation associated with training across recreational and technical levels, boat diving and equipment services.Dive Centre BondiAn Eastern Suburbs PADI 5 Star IDC on Bondi Road teaching through Instructor and technical levels, with air, Nitrox and Trimix fills and manufacturer-approved servicing.

Sidemount Diver Guides and Comparisons

Planning guides and comparisons connected to the skills on this course.

PADI TecRec versus SSI Extended RangeTDI versus PADI TecRec

Sidemount Diver Course FAQs

Is sidemount only for cave divers?

No. It originated in caves but is now widely used recreationally and in wreck diving, and many divers prefer it purely for comfort and redundancy.

Can I use sidemount for recreational dives?

Yes, and many divers do. The configuration provides redundancy that a single-cylinder setup does not.

Sources

What the verified statements on this page are based on. We link primary sources so you can check them yourself — and so you can see the date they were consulted.