Crawfish Rock is a submerged rocky reef dive site in Western Port, Mornington Peninsula, lying roughly 1.5 km north of Scrub Point. This low-relief reef rises from the sandy floor of the main tidal channel and hosts a benthic fauna with deep-water Bass Strait affinities. Its name hints at the southern rock lobsters (crayfish) that shelter among boulders and ledges. Exposed to strong tidal flows through the narrows, it is a productive temperate reef supporting kelp forests, sponges, and a diversity of reef fish — but only for experienced snorkelers arriving by boat.
Crawfish Rock
AdvancedMAYBE
MAYBE
Fair. Experienced snorkellers only.
Showing last known conditions
Wave Height 0.1 mSwell Period 11 sWind Speed 16 knPrecipitation 30 mmTidal Phase flood
Last evaluated
DANGER: Explicit Risks Present
Crawfish Rock has hazards marked as danger. Entering the water here means you may face serious risks to your personal safety.
- Strong Tidal Currents danger
Crawfish Rock sits in the main tidal channel of Western Port, subjecting snorkelers to powerful incoming and outgoing currents that can rapidly sweep people off the reef.
The spot
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Community contribution: submitted by Daniel
Know before you go
Logged by the community, confirmed by mods
High risk: Strong Tidal Currents
Crawfish Rock sits in the main tidal channel of Western Port, subjecting snorkelers to powerful incoming and outgoing currents that can rapidly sweep people off the reef.
Moderate risk: Boat Traffic
The site is only accessible by boat and lies in a navigable channel, with vessel traffic posing a collision risk to snorkelers at the surface.
Low risk: Cold Water
Temperate Victorian waters typically 12-18°C; hypothermia risk without appropriate exposure protection.
Low risk: Variable Visibility
Visibility in Western Port ranges from 2 m to 10 m depending on tides, wind, and rainfall, with sudden drops possible.
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Getting in
Boat
Entry
Crawfish Rock is located in Western Port, about 1.5 km north of Scrub Point on the Mornington Peninsula. Boat access only — popular launch points include Hastings (Western Port Marina), Tooradin, or Rhyll on Phillip Island. GPS marks available from local dive shops.
Parking & facilities
Parking available at public boat ramps including Hastings Western Port Marina (fees may apply for vehicle/trailer parking).
parkingboat_ramp
Launch fees may apply at some ramps; Hastings marina has paid parking for vehicles with trailers.
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports