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.
ReefNingaloo – Exmouth
An easy, fishy ridge reef completing the Lighthouse Bay trio; ideal first dive of the day.
ReefPerth
An easy, shallow offshore reef 20 minutes from Fremantle with good coral and sponge growth, wobbegongs under the ledges and…
IslandMargaret River & Augusta
A sheltered lee-side reef flat with ledges, small caves, sea fans and a long list of reef fish.
Pinnacle/BommieMargaret River & Augusta
A 50 m bommie with caves and swim-throughs and resident Port Jackson sharks off Hamelin Island.
ReefRowley Shoals
The least-publicised atoll, with the Cunningham Island lighthouse.
Shore/Rock PlatformMargaret River & Augusta
A natural rock-pool 'spa' where waves cascade over granite - a scenic swim, not a dive.
ReefRottnest Island
A linear limestone reef with corals, ledges, swim-throughs and a large cave at 13-17 m off Salmon Point.
Shore/Rock PlatformPerth
A rough-weather option with surprisingly good walls of zoanthids and fan sponges, and plenty of inquisitive toadfish and…
Jetty/PierTurquoise Coast
Free community snorkel trail of 70-plus reef balls around the old jetty piles – when not buried by sand.
IslandPilbara & Dampier
Gutters and pinnacles on an exposed outer island.
ReefNingaloo – Exmouth
Keyhole- and window-shaped openings in soft coral-draped overhangs.
Artificial ReefNingaloo – Exmouth
Australia's largest artificial reef at the time of deployment (2018): steel towers up to 10 m high rising from 17 m of sand.
WreckAlbany & Great Southern
One of WA's oldest iron wrecks, an 1854 barque partly exposed at low water in Princess Royal Harbour.
WreckRottnest Island
Scattered remains of a 1984 Japanese tuna longliner in the white water beside Cathedral Rocks.
IslandBroome & Kimberley
A remote turtle and seabird sanctuary with the 1879 Manfred wreck.
IslandPilbara & Dampier
The archipelago's best drop-off, with gorgonians and pelagics to 30 m+.
Shore/Rock PlatformRottnest Island
Calm, shallow seagrass maze in the Armstrong Bay Sanctuary Zone - an easy north-coast snorkel.
Shore/Rock PlatformAlbany & Great Southern
Tropical-looking clear water over white sand and granite boulders at one of WA's most beautiful beaches.
IslandPerth
A sea lion haul-out island in a sanctuary zone off Hillarys, with shallow protected reef and clearer water than the inshore sites.
Shore/Rock PlatformRottnest Island
A tiny, calm, shallow bay with coral gardens, starfish and stingrays - ideal for young children.
Shore/Rock PlatformRottnest Island
A sheltered south-coast lagoon with coral bommies in a few metres of water and a snorkel trail, diveable in most winds.
ReefNingaloo – Coral Bay
Coral Bay's macro and critter site, shallow and calm.
Shore/Rock PlatformEsperance & Recherche Archipelago
An iconic white-sand bay with kangaroos on the beach, calm water and granite reef at its western end.
Artificial ReefMandurah & Peel
WA's first artificial reef funded entirely by recreational fishers: six clusters of concrete modules in 25 m off Mandurah.