Rottnest Island (Thomson Bay settlement)
51 site records refer to this town or area.
Look for operators around Rottnest Island (Thomson Bay settlement) →AUSTRALIAN DESTINATIONS
Explore 434 listed dive sites and find the local knowledge to help plan your visit.

Custom YouDive mascot art inspired by Western Australia. An imaginative illustration, not a photograph or map of this destination.
Your bearings, in a minute
Start with the local site mix, explore the map and find people to ask about your trip.
Directory counts describe published records, not bookable trips. Location confidence is shown separately in the map list. How we check information →
Prepared by YouDive editorial with AI assistance. No firsthand visit, equipment test or instructor review is implied.
Independent specialist review: pending. We publish a reviewer’s name, qualifications, date and exact review scope only after the review has actually happened.
Who can contribute and how reviews work →Find your bearings
Compare where the recorded sites sit, then open a site to read its access and source notes. Locations are for orientation, not marine navigation or entry instructions.
434 matching records · 434 with a map location · 0 without a usable position.
Pinnacle/Bommie · 10–27 m
Recorded location
Reef · 8–14 m
Approximate area
Reef · 20–32 m
Recorded location
Reef · 10–24 m
Approximate area
Island · 3–20 m
Recorded location
Wreck · 4–6 m
Recorded location
Wreck · 0.5–3 m
Recorded location
Artificial Reef · Not recorded
Approximate area
Wreck · 7–8.5 m
Recorded location
Wreck · 0–7 m
Recorded location
Jetty/Pier · 1–9 m
Approximate area
Pinnacle/Bommie · 3–38 m
Approximate area
The local notebook
Use the actual places attached to the local records to narrow your research. These are recorded nearby towns and areas, not verified departure points or accommodation recommendations.
51 site records refer to this town or area.
Look for operators around Rottnest Island (Thomson Bay settlement) →44 site records refer to this town or area.
Look for operators around Exmouth →34 site records refer to this town or area.
Look for operators around Broome →26 site records refer to this town or area.
Look for operators around Albany →21 site records refer to this town or area.
Look for operators around Esperance →20 site records refer to this town or area.
Look for operators around Coral Bay →| Local example | Recorded nearby place | Recorded access | Follow the evidence |
|---|---|---|---|
| Roebuck Bay Flying Boat Wrecks (deep-water Catalinas) | Broome | Boat | Recorded source ↗ |
| Albany Artificial Reef (Ledge Beach – planned) | Albany | Boat (day trip) | Recorded source ↗ |
| Cathedral Rocks Caverns | Rottnest Island (Thomson Bay settlement) | Boat (day trip) | Recorded source ↗ |
| Cardabia Passage | Coral Bay | Boat (day trip) | Recorded source ↗ |
Choose the named outing that interests you first. Compare its recorded place and access with your accommodation plans, then obtain the actual meeting address and schedule from the provider. The site links show the underlying depth, location confidence and source notes. Similar town names or map positions do not establish that two outings can be combined in a day.
A closer look at Western Australia
Our Western Australia directory currently includes 434 published site records. The largest recorded category is reef (125 records). Use the mix below to decide what you would like to read about first.

A visual guide to recorded site types. Counts show coverage, not popularity or current availability.
Source: published YouDive directory records for Western Australia. Bars use the same scale within this graphic; the longest is the largest category, not 100% of the destination.
Start with Roebuck Bay Flying Boat Wrecks (deep-water Catalinas), Albany Artificial Reef (Ledge Beach – planned), Cathedral Rocks Caverns. These are examples from different recorded categories, not a recommended route or a list of the best sites. Open each record for its sources, map and review notes.
| Site | Recorded type | Access | Depth |
|---|---|---|---|
| Roebuck Bay Flying Boat Wrecks (deep-water Catalinas) | Aircraft Wreck | Boat | 5–14 m |
| Albany Artificial Reef (Ledge Beach – planned) Details need confirmation | Artificial Reef | Boat (day trip) | Depth not recorded |
| Cathedral Rocks Caverns | Cave/Cavern | Boat (day trip) | 2–18 m |
| Cardabia Passage Details need confirmation | Drift | Boat (day trip) | 5–20 m |
A dot shows a recorded maximum. A line joins the recorded minimum and maximum when both are available. These are site descriptions, not target depths or certification limits.
The table above contains the same depth values. Depth alone cannot establish suitability, and records may require correction. Source: the linked site records.
Western Australia is a collection of very different trip ideas. Use a specific region to narrow the search, then make the departure, equipment support and travel arrangements the centre of your plan.
Be clear whether you want certified scuba diving, a course, snorkelling or a wildlife excursion. Similar photographs can advertise different activities. If friends are travelling together, list each person’s intended activity separately and ask whether a shared departure is possible. That makes the quote easier to compare and helps avoid booking a memorable-looking trip that does not include the experience you wanted.
A ferry, accommodation booking and dive trip may need separate reservations. Check how their meeting and return times fit together and which operator supplies each part. For a coastal road trip, anchor the diving around one confirmed base at a time. A broad region name is a browsing label, not a transfer estimate or a promise of equipment support in every town.
Ask about hire sizes, guiding, gas and equipment services relevant to your actual plans. Record the response and its date rather than assuming a service from a business name. Keep an alternative activity in the itinerary and understand the terms for a changed departure. Buying flexibility in the travel plan can be more useful than collecting extra site names.
Do the passenger transfer and dive booking connect?
Check each supplier’s timetable.
Which town supports the actual outing?
Build transport around the meeting point.
Is this scuba, snorkelling or sightseeing?
Compare the right activity and inclusions.
From “that looks lovely” to a plan
Find your starting point, meet the local options and keep your ideas together. You do not need to have the whole trip worked out yet.
Find out how a first course works, compare your options and get comfortable asking questions.
Connect your next outing with useful reading and a conversation about the right training and support.
Explore the professional pathway and prepare better questions for a training centre.
These are learning paths to explore, not prerequisites for every local site. Confirm the actual course, instructor and your readiness with the provider.
A few operator profiles from this state or territory to start exploring. Shown alphabetically, not as a quality ranking. Ask about the specific trip or course you want.
Listed in this state or territory
O'Connor
An equipment retailer with a spearfishing and freediving emphasis. Primarily retail rather than a training centre.
Meet this operator →Listed in this state or territory
Geraldton
A Geraldton business providing equipment, training and support for divers heading to the Abrolhos Islands.
Meet this operator →Listed in this state or territory
Bremer Bay
Open the profile for contact details and recorded services, then ask about current arrangements.
Meet this operator →Listed in this state or territory
Broome
Open the profile for contact details and recorded services, then ask about current arrangements.
Meet this operator →Start with the place and your questions. Add dates and prices once you have spoken with the people running the trip.
Creates a new trip with this destination, useful reading and starter questions. Saved on this browser; export a backup from My trips.
THE LOCAL PLANNING BRIEF
Western Australia’s directory ranges from Perth and Rottnest to Ningaloo, offshore groups and the south coast. Use those regions as separate planning units. A long list of attractive places can hide a demanding transport schedule, especially when boat departures, equipment collection and onward travel must all connect.
There are 434 published site records across Western Australia. The recorded categories include reef (125), wreck (95), shore/rock platform (86), island (34). These categories reflect the database; they are not a ranking, a conditions report or an assessment of your suitability.
Start with one of the regional pages below. State-wide totals are useful for browsing, but the actual choice should be made at the level of an operator, a site and a proposed itinerary.
Research operators in Western Australia →Save the answers with the contact name and date. Separate confirmed arrangements from items still waiting for a reply.
Record your trip questions →Compare local operators, Rottnest departures and shore records by the actual meeting point. Confirm whether transport is included.
The Exmouth and Coral Bay pages provide different starting points. Ask which activity and departure you are booking rather than assuming every wildlife experience is a scuba dive.
Resolve travel, equipment support and departure availability early. An offshore destination in a directory does not establish a regularly available visitor service.
Begin with the individual site and its source notes, then discuss the proposed trip with a local provider. The 434 published records are research options, not a list of trips available today. Match the plan to your training, recent experience and the operator’s current requirements.
Choose dates with a provider who runs the activity you want, then discuss seasonal patterns, recent conditions and alternative itineraries. A generic best-month claim cannot establish the conditions at your exact site or guarantee a wildlife encounter.
No. Recorded and approximate map positions support orientation only. Confirm the exact access, permissions, meeting point and route with the responsible local provider or manager.
Regional planning context: Tourism Western Australia — maritime heritage and shipwrecks ↗. Directory counts come from published YouDive records. Individual site claims remain subject to their source and review notes.
Search within Western Australia, or narrow the list to a recorded dive type. Open a site for its map, sources and access notes.
434 matching site records. Listings do not confirm current access or availability.
Pinnacle/BommieRowley Shoals
Cupcake-shaped bommies with curious batfish.
IslandPilbara & Dampier
Branching coral gardens on a remote turtle island.
IslandPilbara & Dampier
Easy shallow snorkelling around a tiny island.
Shore/Rock PlatformRottnest Island
A genuine walk-in reef dive near the ferry, with caves off the rock and the plinth marking Rottnest's first shipwreck (1842).
Artificial ReefGeographe Bay & Busselton
Six clusters of concrete fish boxes in 27 m that have become a fish magnet near the HMAS Swan.
Shore/Rock PlatformTurquoise Coast
A near-circular sheltered bay and clear 'blue holes' at Point Louise, linked by the Three Bays Walkway.
Shore/Rock PlatformGeographe Bay & Busselton
Flat, clear, shallow water over seagrass and granite boulders - the easiest family snorkel near Dunsborough.
Muck/SandRowley Shoals
A field of hundreds of garden eels.
IslandPilbara & Dampier
Coral-dominated fringing reefs with gorgonians on the deeper edge.
IslandTurquoise Coast
Snorkelling with endangered, playful Australian sea lions at the only major west coast breeding area.
Shore/Rock PlatformRottnest Island
A quiet bay with seagrass and shallow limestone caves and channels, 2 km from the settlement.
Shore/Rock PlatformMargaret River & Augusta
Calm, clear lagoon water with a jetty, stairs and pontoon at Augusta - easy family snorkelling.
ReefGeographe Bay & Busselton
Geographe Bay's go-to natural reef: corals, schooling fish and nudibranchs in 15-20 m, a short run from Busselton.
ReefNingaloo – Exmouth
Holes and overhangs sheltering giant groupers and glassfish.
Shore/Rock PlatformAlbany & Great Southern
Clear, sheltered granite coves beside Australia's last whaling station, with buried whaling-era wrecks.
Shore/Rock PlatformGeographe Bay & Busselton
A short swim to a small granite rock in 3-4 m - an easy snorkel and a good night dive near Eagle Bay.
ReefBroome & Kimberley
Broome's most accessible reef, beneath the red cliffs of Gantheaume Point.
WreckRottnest Island
The plinth and scant timbers of an 1876 cutter lost with all ten aboard, completing the Transit Reef wreck circuit.
Shore/Rock PlatformRottnest Island
Deeper north-coast snorkelling with limestone caves, octopus and stingrays beside the Geordie Bay settlement.
WreckMargaret River & Augusta
Site of the 1876 Georgette wreck and Grace Bussell's famous rescue, with a shallow inshore reef for calm-day snorkels.
Shore/Rock PlatformMargaret River & Augusta
A reef-protected lagoon with caves and a fish nursery, a snorkel trail and free fish-ID slates from the beach cafe.
Pinnacle/BommiePilbara & Dampier
Nudibranch-rich bommies close to Thevenard.
ReefPilbara & Dampier
Colourful caves and ledges with sharks.
WreckKalbarri & Shark Bay
A rarely dived 1901 wreck in a Shark Bay sanctuary zone, rich with groper and lionfish.