Western Australia · 22 sites
Geographe Bay is sheltered from the Southern Ocean swell and has the 1.8 km Busselton Jetty with its underwater observatory, the HMAS Swan wreck off Dunsborough, the Four Mile Reef sponge gardens and easy beach dives at Meelup and Castle Rock. It is the South-West's most reliable diving.
Conditions outlook · Late September – October 2026
Written 27 September 2026The bay is sheltered enough for the Swan and Busselton Jetty on most spring mornings with an easterly, 17 °C water; the settled season begins in December and the Dunsborough boats run through it.
Getting there
Two and a half hours south of Perth. Busselton Jetty is a walk-in dive (or a jetty-train ride); charters from Dunsborough run the Swan.
When to go
December to May with morning easterlies.
Water & suit
Summer 20-23 °C · winter 16-18 °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 Geographe Bay & Busselton
Suggested trip
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 Geographe Bay & Busselton plan: pick days, level and must-dive sites →Day 1 · Settle in
Start with Geographe Bay & Busselton's easier shore dives: check your weighting, get used to the water temperature and dive the sheltered side of the coast.
Day 2 · The signature dives
A charter day on the sites people travel to Geographe Bay & Busselton for, including HMAS Swan Wreck.
Day 3 · Deeper or further
For divers with the certification and the weather: the deeper walls, pinnacles or less-visited sites of Geographe Bay & Busselton.
Operators recorded as running sites in this region. Each profile lists the specific sites it goes to.
Busselton · Margaret River & Augusta · WA
Also operates from 310 Geographe Bay Rd, Quindalup (Dunsborough).
swandive.com.au · 0439 108 760
Busselton · Geographe Bay & Busselton · WA
Not operating dives or undersea walks for the 2025-26 season due to jetty redevelopment; hopes to resume Dec 2026.
divebusseltonjetty.com.au
Bunbury · Geographe Bay & Busselton · WA
Operates from Bunbury (not Busselton); dive charters and dolphin cruises.
octopusgardendivecharters.com.au · 0417 794 008
East Bunbury · Geographe Bay & Busselton · WA
Shop is in Bunbury, not Busselton.
coastalwaterdive.com.au · (08) 9721 7786
Click a pin for the site. 3 sites without published coordinates are not shown.
19 pinned sites. Pins marked approximate on their pages show the general area only; not for navigation.
22 sites in Geographe Bay & Busselton · click a column to sort
| Bunbury Artificial Reef | Artificial Reef | Max 17 m | Open Water | Boat (day trip) | Rare |
| Bunbury Back Beach | Shore/Rock Platform | Max 8 m | Open Water | Shore | Rare |
| Bunbury Offshore Coral Reefs | Reef | Max 33 m | Deep/Advanced + experience | Boat (day trip) | Occasional |
| Bunbury Outer Harbour Breakwater | Shore/Rock Platform | Max 8 m | Open Water | Shore or Boat | Rare |
| Bunker Bay - Shelley Beach | Shore/Rock Platform | Max 5 m | Snorkel/Any | Shore | Occasional |
| Busselton Jetty | Jetty/Pier | Max 9 m | Open Water | Shore or Boat | Daily |
| Busselton Jetty Underwater Sculpture Park | Artificial Reef | Max 8 m | Snorkel/Any | Shore or Boat | Daily |
| Castle Rock (Castle Bay) | Shore/Rock Platform | Max 6 m | Snorkel/Any | Shore | Weekly |
| Dunsborough Artificial Reef | Artificial Reef | Max 27 m | Advanced Open Water | Boat (day trip) | Rare |
| Eagle Bay | Shore/Rock Platform | Max 3 m | Snorkel/Any | Shore | Weekly |
| Eagle Bay Coral Bommies | Pinnacle/Bommie | Max 15 m | Open Water | Shore or Boat | Rare |
| Four Mile Reef | Reef | Max 20 m | Advanced Open Water | Boat (day trip) | Weekly |
| Gannet Rock | Shore/Rock Platform | Max 4 m | Snorkel/Any | Shore | Occasional |
| HMAS Swan Wreck | Wreck | Max 31 m | Deep/Advanced + experience | Boat (day trip) | Daily |
| Koombana Bay (Dolphin Discovery Centre) | Muck/Sand | Max 5 m | Snorkel/Any | Shore | Weekly |
| Lena Wreck | Wreck | Max 18 m | Open Water | Boat (day trip) | Weekly |
| Mary Wreck (Lockeville Jetty) | Wreck | Max 3 m | Snorkel/Any | Shore | Rare |
| Meelup Beach | Shore/Rock Platform | Max 4 m | Snorkel/Any | Shore | Daily |
| Naturaliste Reef | Reef | Max 50 m | Technical (decompression) | Boat (day trip) | Expedition |
| Point Picquet | Shore/Rock Platform | Max 6 m | Snorkel/Any | Shore | Weekly |
| Sugarloaf Rock | Shore/Rock Platform | Max 22 m | Advanced Open Water | Shore or Boat | Rare |
| Wrights Bank | Pinnacle/Bommie | Max 35 m | Deep/Advanced + experience | Boat (day trip) | Occasional |
Two and a half hours south of Perth. Busselton Jetty is a walk-in dive (or a jetty-train ride); charters from Dunsborough run the Swan.
December to May with morning easterlies.
22 documented sites, including 3 wrecks and 10 that can be dived independently from the shore. The deepest reaches 50 m.
Yes, 11 sites are rated beginner. Look for the green Beginner tag in the list below, and check the weather notes on each page before diving.
Typically 20-23 °C in summer and 16-18 °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.
Swan Dive, Dive Busselton Jetty, Octopus Garden Dive Charters, Coastal Water Dive are recorded as running sites in Geographe Bay & Busselton. Each site page lists the operators known to go there.
Fiona Stanley Hospital Hyperbaric Medicine Unit (Murdoch, Perth). In an emergency call 000, then DAN Asia-Pacific on 1800 088 200.
Other regions in Western Australia