Weekend range
Sites within roughly 110 km straight-line distance of central Perth, ordered by how regularly they are dived and how well they are documented.
Perth's metropolitan limestone reefs, the Rockingham and Coogee wreck trails, the Swan River, and Rottnest Island are all within about 110 km. Autumn mornings before the sea breeze are the time.
Everything here is temperate with a tropical accent from the Leeuwin Current.
Updated daily from the directory. 30 sites listed.

1. Perth · WA
14 km from Perth · A sheltered, accessible lagoon for families and an outer reef with swim-throughs, ledges, an arch and colourful sea fans.

2. Perth · WA
16 km from Perth · A 400 m interpretive underwater trail with about 20 plinths, weedy seadragons and a wheelchair-accessible entry.

3. Perth · WA
19 km from Perth · A compact sanctuary-zone reef with passages, ledges and an underwater plaque trail, 100 m off the Hillarys Boat Harbour wall.

4. Perth · WA
20 km from Perth · A 1858 iron steamer lying 25 m off the beach in 3 m of water, with a 200 m trail of reef modules and sculptures running seaward from it: one of the best-developed underwater trails in WA.

5. Perth · WA
22 km from Perth · Perth's classic easy shore and night dive: century-old pylons encrusted with sponges and corals that hold excellent macro life, in a sheltered bay that is diveable when most other sites are not.

6. Rottnest Island · WA
29 km from Perth · The most intact iron wreck at Rottnest: a 63 m 1883 steamer upright on the reef with ribs, gunwales and boiler in 3-7 m, beside the Denton Holme.

7. Rottnest Island · WA
29 km from Perth · The standing bow of an 1890 iron barque rising almost to the surface, a spread of cargo and plates, and a shallow cave system on the reef beside it.

8. Rottnest Island · WA
29 km from Perth · A 1942 schooner filled with sand in 2.5-4 m just metres from the beach - Rottnest's easiest wreck snorkel.

9. Rottnest Island · WA
31 km from Perth · Thirteen historic wrecks linked by plaques and plinths, with two easy snorkel wrecks and a land trail from the museum to Bathurst Lighthouse.

10. Rottnest Island · WA
31 km from Perth · Limestone arches, caverns and maze-like swim-throughs at 10-15 m, a short run from Thomson Bay and sheltered from the south-west swell.

12. Perth · WA
31 km from Perth · An 800 m working jetty whose pylons are densely encrusted and full of macro life, with deeper, fish-filled structure at the T-head.

13. Rottnest Island · WA
32 km from Perth · Snorkel trail with seabed plaques over the southernmost pocillopora coral reef, in a sanctuary zone 5 km from the ferry.

14. Perth · WA
38 km from Perth · Perth's most-dived shore site: two light aircraft, small scuttled boats and steel structures joined by rope lines in 10–17 m, sheltered in almost all weather.

15. Perth · WA
11 km from Perth · A reef-ringed sandy lagoon straight off North Cottesloe Beach, one of Perth's most popular and easiest snorkels.

16. Rottnest Island · WA
30 km from Perth · A reef-ringed natural pool of clear, shallow water 20 minutes' walk from the ferry - Rottnest's easiest snorkel.

17. Rottnest Island · WA
30 km from Perth · A wide, sheltered beach with an undulating coral reef beside the Bathurst Lighthouse, ten minutes from the ferry.

18. Rottnest Island · WA
32 km from Perth · A quiet bay with seagrass and shallow limestone caves and channels, 2 km from the settlement.

19. Rottnest Island · WA
32 km from Perth · A sheltered south-coast lagoon with coral bommies in a few metres of water and a snorkel trail, diveable in most winds.

20. Rottnest Island · WA
33 km from Perth · Deeper north-coast snorkelling with limestone caves, octopus and stingrays beside the Geordie Bay settlement.

21. Rottnest Island · WA
33 km from Perth · A tiny, calm, shallow bay with coral gardens, starfish and stingrays - ideal for young children.

22. Rottnest Island · WA
34 km from Perth · A broad south-coast bay with shallow coral ledges and schools of bream, excellent in easterly winds.

23. Rottnest Island · WA
34 km from Perth · Calm, shallow seagrass maze in the Armstrong Bay Sanctuary Zone - an easy north-coast snorkel.

24. Perth · WA
12 km from Perth · A WWII landing craft and a sunken junk-style pleasure boat that together are the Swan River's most reliable seahorse site.

25. Perth · WA
17 km from Perth · An upright, partly penetrable hopper barge in 8 m, reached by a pole trail from the North Mole, and the main sheltered shore wreck north of the Swan River.

26. Perth · WA
18 km from Perth · A quiet line of historic jetty pylons in 5–8 m off the CY O'Connor statue, with good macro life, seagrass edges and better average visibility than Ammo Jetty.

27. Rottnest Island · WA
29 km from Perth · Admiralty anchors, davit and boiler of Fremantle's largest vessel of 1887, plus a small reef cave, a short swim from the Macedon.

28. Perth · WA
30 km from Perth · A sheltered industrial jetty with gently sloping pylons, heavy encrustation and some very large sea stars; a dependable bad-weather shore dive.

29. Rottnest Island · WA
30 km from Perth · Substantial remains of an 1878 composite barque on clean sand in calm, clear water behind Dyer Island, with caves nearby.

30. Rottnest Island · WA
31 km from Perth · Rottnest's signature cavern reef: hundreds of metres of limestone chambers and swim-throughs lit by light shafts and full of schooling fish.
The top of this list is the most regularly dived, well-documented site within weekend range of Perth. Scroll for shore dives you can do without a charter.
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