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.
WreckRottnest Island
Standing masts on an 1886 Glasgow-built barque hulk, discovered in 2024 - the shallowest known wreck in the Rottnest graveyard.
Cave/CavernNullarbor Caves
A warm-water phreatic maze with a striking halocline, a CO2-filled inner chamber and a punishing entry.
Aircraft WreckBroome & Kimberley
Walk among WWII flying-boat wrecks on the mudflats at extreme low tide.
Shore/Rock PlatformPerth
A 250 m limestone reef with walls, overhangs and swim-throughs off a famous surf beach, diveable only on flat days.
DriftNingaloo – Exmouth
Australia's most famous drift snorkel: float over coral bommies with sharks and turtles, straight off a white-sand beach.
WreckPerth
A modern trawler wreck lying against a reef ledge with its wheelhouse and outriggers scattered nearby.
WreckPerth
A shallow, weed-covered steel ship lying against Stragglers Reef in often very clear water.
WreckRottnest Island
A 1942 schooner filled with sand in 2.5-4 m just metres from the beach - Rottnest's easiest wreck snorkel.
WreckTurquoise Coast
Winch, bollards and framing of an 1897 steel barque 40 m off the beach, with the bow breaking the surface at low tide.
WreckPerth
Masts, deck winches and a 90 m debris field of a rare four-masted French barque wrecked in 1901.
Cave/CavernNullarbor Caves
A colossal flooded tunnel near Eucla with 150 m lakes, extreme clarity and deep Advanced Cave sections.
Shore/Rock PlatformPerth
A 300 m reef-sheltered lagoon with gullies and a low swim-through, ideal for snorkelling on calm mornings.
WreckNingaloo – Coral Bay
An upright propeller and rudder at the end of a 120 m wreck trail.
Pinnacle/BommieRottnest Island
An offshore spire with big overhangs and a fish-packed cave, rising to 10 m off the West End.
ReefNingaloo – Coral Bay
Coral Bay's deepest regular outer-reef dive, on the Tropic of Capricorn.
IslandBroome & Kimberley
A remote reef platform and seabird island with abundant sharks.
Pinnacle/BommieGeraldton & Abrolhos Islands
Anemone-covered coral bommie from 38 m to 3 m with baitfish clouds, big plate corals and curious emperors.
WreckAlbany & Great Southern
Surprisingly substantial timber remains of an 1869 barque and coal hulk, including stem, breast hook and windlass.
Pinnacle/BommieNingaloo – Coral Bay
A 5 m-tall coral bommie that survived the 2022 coral die-off in Bill's Bay.
ReefPilbara & Dampier
A fully no-take marine park with a green turtle breeding aggregation.
ReefGeraldton & Abrolhos Islands
Pelagic action in the passages beside Batavia's Graveyard, from a trail off the Beacon Island jetty.
WreckEsperance & Recherche Archipelago
An 1824 sealing brig and a steamer's boiler at the Recherche's largest island, home of pink Lake Hillier and pirate Black Jack…
IslandPilbara & Dampier
Friendly potato cod and turtles on coral ridges.
ReefNingaloo – Exmouth
The bait crack swim-through packed with glassfish.