Western Australia · 27 sites
Margaret River & Augusta dive sites
The Cape-to-Cape coast has limestone reef, caves and the Hamelin Bay stingray beach, where huge smooth rays cruise the shallows; Canal Rocks, Gnarabup and Cowaramup Bay are shore dives on flat days and the offshore reefs off Augusta and Flinders Bay hold sea lions and clear water.
- Sites
- 27
- Wrecks
- 7
- Shore
- 11
- Boat
- 9
- Beginner
- 14
- Deepest
- 35 m
Conditions outlook · Late September – October 2026
Written 27 September 2026The Capes coast opens on easterly mornings with low swell, which spring provides occasionally and summer regularly; 17 °C water, the Cape Naturaliste sites and Hamelin Bay's stingrays on the calm days.
Getting there
Three hours south of Perth. Shore entries at Hamelin Bay, Canal Rocks and Gnarabup; occasional charters from Augusta and Dunsborough.
When to go
December to April with easterly winds and low swell.
Water & suit
Summer 19-22 °C · winter 16-17 °C. 5 mm full wetsuit in summer and autumn; 7 mm or 5 mm with hood and vest in winter and spring
Nearest chamber: Fiona Stanley Hospital Hyperbaric Medicine Unit (Murdoch, Perth)
Most recorded marine life in Margaret River & Augusta
- Western king wrasse 19
- Buffalo bream 14
- Old wife 12
- Herring cale 11
- Western blue groper 5
- Scalyfin 4
- Dhufish 3
- Morwong 3
- Sea urchins 3
- Seagrass fauna 3
- Weed and kelp 3
- Western blue devil 3
- Crabs 2
- Foxfish 2
Plan a dive trip to Margaret River & Augusta →Find your diveCompare the top 4 side by sideNew diver? Start here
The most-dived sites in Margaret River & Augusta
Suggested trip
A 3-day dive trip to Margaret River & Augusta
Built from the sites in this region: an easy start, the signature dives, then something deeper or further. Swap days around the weather; the site pages say which winds and swell close each one.
Build your own Margaret River & Augusta plan: pick days, level and must-dive sites →Day 1 · Settle in
Start with Margaret River & Augusta's easier shore dives: check your weighting, get used to the water temperature and dive the sheltered side of the coast.
- Yallingup LagoonShore/Rock Platform · Max 3 m · Snorkel/Any
- Hamelin Bay Jetty & StingraysShore/Rock Platform · Max 4 m · Snorkel/Any
Day 2 · The signature dives
A charter day on the sites people travel to Margaret River & Augusta for, including Chaudiere Wreck.
- Chaudiere WreckWreck · Max 6 m · Open Water
- Peak Island & Toba WreckWreck · Max 15 m · Open Water
Day 3 · Deeper or further
For divers with the certification and the weather: the deeper walls, pinnacles or less-visited sites of Margaret River & Augusta.
- Skippy RockShore/Rock Platform · Max 6 m · Open Water
- Georgette Wreck (Redgate Beach)Wreck · Max 5 m · Open Water
Dive centres and charters in Margaret River & Augusta
All Western Australia operators →Operators recorded as running sites in this region. Each profile lists the specific sites it goes to.
Swan Dive
Named by sitesConfirmed Sept 2026
Busselton · Margaret River & Augusta · WA
Also operates from 310 Geographe Bay Rd, Quindalup (Dunsborough).
swandive.com.au · 0439 108 760
49 sites
Oceania Experiences
Named by sitesConfirmed Sept 2026
Dunsborough · Margaret River & Augusta · WA
Eco boat tour brand operated by Swan Dive.
swandive.com.au · 0439 108 760
6 sites
Map of Margaret River & Augusta dive sites
Click a pin for the site. 3 sites without published coordinates are not shown.
Loading map…
24 pinned sites. Pins marked approximate on their pages show the general area only; not for navigation.
All 27 Margaret River & Augusta dive sites
All Margaret River & Augusta sites at a glance
27 sites in Margaret River & Augusta · click a column to sort
| Agincourt Wreck | Wreck | Max 6 m | Open Water | Shore or Boat | Occasional |
| Canal Rocks | Shore/Rock Platform | Max 20 m | Advanced Open Water | Shore or Boat | Occasional |
| Chaudiere Wreck | Wreck | Max 6 m | Open Water | Shore or Boat | Occasional |
| Cosy Corner | Shore/Rock Platform | Max 7 m | Open Water | Shore | Occasional |
| Cosy Corner Offshore Reefs | Reef | Max 15 m | Open Water | Boat (day trip) | Rare |
| Cowaramup Bay | Reef | Max 25 m | Advanced Open Water | Shore or Boat | Rare |
| Cumberland Wreck | Wreck | Max 8 m | Open Water | Boat (day trip) | Rare |
| Flinders Bay (Augusta) | Shore/Rock Platform | Max 4 m | Snorkel/Any | Shore | Weekly |
| Georgette Wreck (Redgate Beach) | Wreck | Max 5 m | Open Water | Shore | Rare |
| Gnarabup Bay & Prevelly Lagoon | Shore/Rock Platform | Max 5 m | Snorkel/Any | Shore | Weekly |
| Hamelin Bay Jetty & Stingrays | Shore/Rock Platform | Max 4 m | Snorkel/Any | Shore | Daily |
| Hamelin Island | Island | Max 9 m | Open Water | Boat (day trip) | Rare |
| Hamelin Island NE Bommie | Pinnacle/Bommie | Max 15 m | Open Water | Boat (day trip) | Rare |
| Indicators (Canal Rocks) | Wall | Max 30 m | Deep/Advanced + experience | Boat (day trip) | Rare |
| Injidup Natural Spa | Shore/Rock Platform | Max 2 m | Snorkel/Any | Shore | Daily |
| Katinka Wreck | Wreck | Max 6 m | Open Water | Boat (day trip) | Occasional |
| Kilcarnup | Shore/Rock Platform | Max 6 m | Open Water | Shore | Rare |
| Mushroom Reef | Reef | Max 8 m | Open Water | Boat (day trip) | Rare |
| Mushroom Rock | Reef | Max 15 m | Open Water | Shore or Boat | Occasional |
| Peak Island & Toba Wreck | Wreck | Max 15 m | Open Water | Boat (day trip) | Occasional |
| Quarry Bay | Shore/Rock Platform | Max 5 m | Snorkel/Any | Shore | Rare |
| Skippy Rock | Shore/Rock Platform | Max 6 m | Open Water | Shore | Rare |
| Smiths Beach | Shore/Rock Platform | Max 12 m | Open Water | Shore or Boat | Occasional |
| SS Pericles Wreck | Wreck | Max 35 m | Deep/Advanced + experience | Boat (day trip) | Rare |
| The Aquarium (Yallingup) | Shore/Rock Platform | Max 4 m | Snorkel/Any | Shore | Weekly |
| The Honeycombs (Canal Rocks) | Reef | Max 6 m | Open Water | Shore or Boat | Rare |
| Yallingup Lagoon | Shore/Rock Platform | Max 3 m | Snorkel/Any | Shore | Daily |
Margaret River & Augusta diving FAQ
How do I get to the dive sites in Margaret River & Augusta?
Three hours south of Perth. Shore entries at Hamelin Bay, Canal Rocks and Gnarabup; occasional charters from Augusta and Dunsborough.
When is the best time to dive Margaret River & Augusta?
December to April with easterly winds and low swell.
How many dive sites are there in Margaret River & Augusta?
27 documented sites, including 7 wrecks and 11 that can be dived independently from the shore. The deepest reaches 35 m.
Are there beginner dive sites in Margaret River & Augusta?
Yes, 14 sites are rated beginner. Look for the green Beginner tag in the list below, and check the weather notes on each page before diving.
How cold is the water in Margaret River & Augusta?
Typically 19-22 °C in summer and 16-17 °C in winter. Most divers wear 5 mm full wetsuit in summer and autumn; 7 mm or 5 mm with hood and vest in winter and spring.
Which dive centres operate in Margaret River & Augusta?
Swan Dive, Oceania Experiences are recorded as running sites in Margaret River & Augusta. Each site page lists the operators known to go there.
Where is the nearest recompression chamber to Margaret River & Augusta?
Fiona Stanley Hospital Hyperbaric Medicine Unit (Murdoch, Perth). In an emergency call 000, then DAN Asia-Pacific on 1800 088 200.
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