Western Australia

Diving in Rottnest Island

Rottnest, 20 km off Fremantle, has more than 50 dive sites, the most shipwrecks on the WA coast (the Rottnest Wreck Trail and the deep Ships' Graveyard beyond) and coral growing at the southern limit of its range. Limestone caves, swim-throughs and ledges at Crystal Palace, Roe Reef and the Shark Cave are the classics; the West End has seals and pelagics.

Open my trips →Estimate trip costs →

YouDive turtle in an illustrated Western Australia setting; not a photograph of Rottnest Island

Custom YouDive mascot art inspired by Western Australia. An imaginative illustration, not a photograph or map of this destination.

Your bearings, in a minute

Rottnest Island at a glance

Start with the local site mix, explore the map and find people to ask about your trip.

Explore
52 site records
Recorded settings
Wreck · Reef · Shore/Rock Platform
Map coverage
52 locations to explore
Plan with local help
Meet the listed operators

Directory counts describe published records, not bookable trips. Location confidence is shown separately in the map list. How we check information →

Sources, authorship and review status

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

Explore Rottnest Island on the map

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.

52 matching records · 52 with a map location · 0 without a usable position.

The local notebook

Where should you start in Rottnest Island?

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.

Different outings to look into

Details drawn from individual published site records
Local exampleRecorded nearby placeRecorded accessFollow the evidence
Cathedral Rocks CavernsRottnest Island (Thomson Bay settlement)Boat (day trip)Recorded source ↗
10 Metre SpireRottnest Island (Thomson Bay settlement)Boat (day trip)Recorded source ↗
20 Metre RidgeRottnest Island (Thomson Bay settlement)Boat (day trip)Recorded source ↗
Duck Rock & Transit PlinthRottnest Island (Thomson Bay settlement)Shore or BoatRecorded source ↗
How to use this shortlist

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 Rottnest Island

Get a feel for the diving

Our Rottnest Island directory currently includes 52 published site records. The largest recorded category is wreck (18 records). Use the mix below to decide what you would like to read about first.

The YouDive turtle introducing this destination’s guide

Rottnest Island: what’s in the directory?

A visual guide to recorded site types. Counts show coverage, not popularity or current availability.

Wreck18 records
Reef14 records
Shore/Rock Platform14 records
Cave/Cavern4 records
Pinnacle/Bommie1 record
Other recorded types1 record

Source: published YouDive directory records for Rottnest Island. Bars use the same scale within this graphic; the longest is the largest category, not 100% of the destination.

A few local records to compare

Start with Cathedral Rocks Caverns, 10 Metre Spire, 20 Metre Ridge. 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.

One alphabetical example per recorded type, up to four types
SiteRecorded typeAccessDepth
Cathedral Rocks CavernsCave/CavernBoat (day trip)2–18 m
10 Metre SpirePinnacle/BommieBoat (day trip)10–27 m
20 Metre Ridge

Details need confirmation

ReefBoat (day trip)20–32 m
Duck Rock & Transit PlinthShore/Rock PlatformShore or Boat2–6 m

How the recorded depths compare

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.

Pick a WA base before you pack

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.

Name the activity you want

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.

Connect the island or coast with the departure

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.

Reserve the details that matter

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.

Three conversations worth having before you book

Island visit

Do the passenger transfer and dive booking connect?

Check each supplier’s timetable.

Coastal road trip

Which town supports the actual outing?

Build transport around the meeting point.

Wildlife booking

Is this scuba, snorkelling or sightseeing?

Compare the right activity and inclusions.

From “that looks lovely” to a plan

Make Rottnest Island your kind of dive trip

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.

Where are you on your diving journey?

These are learning paths to explore, not prerequisites for every local site. Confirm the actual course, instructor and your readiness with the provider.

People to talk to about Rottnest Island

These profiles are based in the region or have a sourced link to one of its sites. Shown alphabetically, not as a quality ranking. Ask about the specific trip or course you want.

Source-linked to a site in this region

Dolphin Scuba Diving

Welshpool

A Perth business providing training, equipment and service support.

Listed agencies: tdi. Check current affiliations and course availability.

Meet this operator →

Compare these local operators →

Browse all operator profiles in this state or territory →

Let’s put the pieces together

Start with the place and your questions. Add dates and prices once you have spoken with the people running the trip.

Open my trips

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

Understand the options around Rottnest Island

Connect the island journey with the dive booking

Check whether your chosen product includes transport to the relevant departure point or requires a separate island transfer. Compare baggage and equipment handling before committing to the route, particularly if travelling with your own kit. The site directory helps you research the area, but does not confirm the operator’s itinerary. Make sure your return arrangements work with the actual trip schedule and its stated contingencies.

One useful question: Which transport is included, and what happens to the connection if the dive itinerary changes?

What this regional directory records

There are 52 published site records in Rottnest Island. The recorded categories include wreck (18), reef (14), shore/rock platform (14), cave/cavern (4). These categories reflect the database; they are not a ranking, a conditions report or an assessment of your suitability.

Use the Rottnest Island site cards to compare recorded access and depth, then open the individual pages for the map accuracy and source notes. Sites grouped in a region are not necessarily close enough to combine in one day.

Research operators in Western Australia →

Ask before booking

  1. Which town is the practical base for this departure?
  2. What transport and baggage limits apply?
  3. What is the plan if the departure is delayed?

Save the answers with the contact name and date. Separate confirmed arrangements from items still waiting for a reply.

Record your trip questions →

Questions, answered

How do I choose a dive in Rottnest Island?

Begin with the individual site and its source notes, then discuss the proposed trip with a local provider. The 52 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.

When should I visit Rottnest Island for diving?

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.

Can I use these maps to enter or navigate a dive site?

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.

Dive sites in this region

Find local operators
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Little Armstrong Bay

Calm, shallow seagrass maze in the Armstrong Bay Sanctuary Zone - an easy north-coast snorkel.

ShoreUp to 5 m
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Little Parakeet Bay

A tiny, calm, shallow bay with coral gardens, starfish and stingrays - ideal for young children.

ShoreUp to 4 m
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Little Salmon Bay

A sheltered south-coast lagoon with coral bommies in a few metres of water and a snorkel trail, diveable in most winds.

ShoreUp to 6 m
WAYouDive mascot illustration; not a photograph of the siteWreck

Rottnest Island

Miwok II Barge

A seldom-visited 1983 crane barge used for SAS demolition training, in clear 11 m water off Bickley Point.

Boat (day trip)Up to 11 m
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

North Point Reef

A narrow limestone ravine 8 m deep, lit by shafts of sunlight, cutting through an offshore mound at 18-26 m.

Boat (day trip)Up to 26 m
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Pinky Beach

A wide, sheltered beach with an undulating coral reef beside the Bathurst Lighthouse, ten minutes from the ferry.

ShoreUp to 5 m
WAYouDive mascot illustration; not a photograph of the siteWreck

Rottnest Island

Raven Wreck

A hunt through kelp for the ballast stones and sheathing of an 1891 barque lost under a drunken skipper.

Boat (day trip)Up to 7 m
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Rocky Bay

Remote, secluded lagoons behind rocks with turtles, octopus and stingrays - best on northerly mornings.

ShoreUp to 5 m
WAYouDive mascot illustration; not a photograph of the siteWreck

Rottnest Island

Rottnest Ships' Graveyard

Dozens of deliberately scuttled vessels, mostly unseen, in 46-200 m - Perth's frontier for technical wreck exploration.

Boat (day trip)Up to 200 m
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Salmon Bay

A broad south-coast bay with shallow coral ledges and schools of bream, excellent in easterly winds.

ShoreUp to 5 m
WAYouDive mascot illustration; not a photograph of the siteWreck

Rottnest Island

Salmon Bay Unidentified Wreck

A lone boiler, shaft and propeller of unknown origin in clear 26 m water off Salmon Bay.

Boat (day trip)Up to 26 m
WAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Rottnest Island

Swirl Reef

A crater-shaped reef with a huge light-shafted cave and multiple swim-throughs - Rottnest's most unusual formation.

Boat (day trip)Up to 19 m
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

The Basin

A reef-ringed natural pool of clear, shallow water 20 minutes' walk from the ferry - Rottnest's easiest snorkel.

ShoreUp to 4 m
WAYouDive mascot illustration; not a photograph of the siteWreck

Rottnest Island

The Clipper (Maranda, Graveyard Site 06)

A deep, intact iron sailing-ship hull in 65 m, the best known of the Rottnest graveyard wrecks among Perth tech divers.

Boat (day trip)Up to 65 m
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

West End Reefs

Deep, current-swept spires and fissures at the far end of Rottnest with big fish, sharks and passing whales.

Boat (day trip)Up to 30 m
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

20 Metre Ridge

A deep offshore ridge at 20-32 m north of Rottnest for experienced divers seeking bigger fish and quiet water.

Boat (day trip)Up to 32 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

Cigar Reef

An offbeat reef with thermoclines, odd currents and a reputation for unusual creatures.

Boat (day trip)Up to 26 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Fish Hook Bay

A remote West End bay with turquoise water, extensive reef and excellent visibility in a sanctuary zone.

ShoreUp to 10 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

Green Island (Rottnest)

A sanctuary-zone reef where endangered Australian sea lions haul out, with a chance of an in-water encounter.

Shore or BoatUp to 10 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

Jackson's Rock

An isolated reef of ledges, gullies and caves 'packed with marine life', closer to Fremantle than most Rottnest sites.

Boat (day trip)Up to 18 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteReef

Rottnest Island

Kingston Spit

A less-visited north-east reef with Roe Reef-style ledges and caves and better fish life because of low traffic.

Boat (day trip)Up to 18 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Longreach Bay

A broad, calm north-coast bay close to the settlement with corals, tropical fish and occasional dolphins.

ShoreUp to 5 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteShore/Rock Platform

Rottnest Island

Mary Cove

A quiet, clear-water south-coast cove with rocky outcrops away from the crowds.

ShoreUp to 5 m
Details need confirmation
WAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Rottnest Island

North Point Hole

A cavern dropping through the reef to 26 m, 'full of marine life', beside the North Point ravine.

Boat (day trip)Up to 26 m
Details need confirmation