Safety · Destination Guide
Jetty pilings, a legendary wreck, and cape-to-cape reefs with world-class wine country in between
Updated Jan 23, 2026 • 16 sources
This region rewards conservative decision-making. Use forecasts, respect swell, and follow Ngari Capes Marine Park zoning rules. Most issues come from pushing marginal conditions on exposed beaches or ignoring boat traffic in popular bays.
Busselton and Margaret River have local hospitals for initial assessment. For serious diving injuries, evacuation and specialist treatment may involve transfer to Perth. Carry dive accident insurance (for example, DAN) that covers hyperbaric treatment and medical transport, and save emergency numbers before you enter the water.
Swell and surge on the west-coast capes
Ngari Capes coastline can be exposed to large, uninterrupted ocean swells. If surge is strong or entries look unsafe, pivot to Geographe Bay dives or topside plans.
Boat traffic near jetties and popular bays
Use a surface marker buoy where appropriate, stay within designated areas, and avoid surfacing unexpectedly in vessel corridors.
Cold-water exposure in winter
Water temperatures under the jetty can drop to about 15°C in July. Longer dives and repeated sessions require thicker exposure protection and warm layers between dives.
Ngari Capes Marine Park protects key habitats including seagrass meadows and supports whale migration corridors. In sanctuary zones, do not fish or collect, including taking shells. Keep all diving and snorkelling non-extractive, maintain good buoyancy to avoid damaging sponge growth on jetty pylons, and do not feed wildlife. If you encounter rays or large fish like western blue groper, give them space and let them approach on their terms.
Do Not Do This
Avoid entering when swell and surge on the west-coast capes. Confirm local briefings before committing.
| Contact | Role | Phone | Availability |
|---|---|---|---|
| Emergency services | Police, Fire, Ambulance | 000 | 24/7 |
| State Emergency Service (SES) | Storm and flood assistance | 132 500 | 24/7 |
| Poisons Information Centre | Poisons advice | 13 11 26 | 24/7 |
| Police Assistance Line | Non-urgent police | 131 444 | 24/7 |