Roberts Point is a shallow limestone reef system (4–8 m depth) in Halls Head, Mandurah, that runs parallel to the shore with distinct sandy troughs cutting through the reef structure. The site sits adjacent to a boat channel marked by a channel beacon, so snorkelers should stay within the reef zone. Entry is via steep steps from a cliff-top carpark onto the beach, then a short walk across the sand. The reef is home to colourful sponges, unique molluscs such as the ornate Sagaminopteron ornatum, and offers good snorkelling when conditions are calm — wind and swell can stir up sand and reduce visibility quickly.
Roberts Point (Mandurah)
Fair. Experienced snorkellers only.
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Community contribution: submitted by Daniel
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Moderate risk: Boat traffic channel
Boat traffic in the adjacent channel — do not snorkel beyond the channel marker at the end of the reef.
Moderate risk: Poor visibility in wind/swell
Onshore wind and >1 m swell stir up sand, reducing visibility to just a couple of metres. Best on calm, low-swell days.
Low risk: Sharp slippery reef
The shallow limestone reef is sharp and slippery. A slip or fall can cause cuts.
Low risk: Steep access steps
Steep steps from the carpark down to the beach can be hazardous when carrying snorkel gear.
Low risk: Surge in shallow water
A moderate surge can develop on the shallow reef in southerly winds, making snorkelling challenging.
Low risk: Shallow limestone reef patches
Shallow seagrass and sandbank areas can change with tides, requiring care when entering at low tide to avoid scraping on limestone reef patches.
Low risk: Boat traffic
Boat traffic in the Mandurah estuary and Peel Inlet channel can create wash and reduced visibility near the beach.
Low risk: Boat traffic in Peel Inlet
The estuary sees recreational boat and jet ski traffic; stay aware and avoid busy channels.
Low risk: Patchy seagrass visibility
Seagrass beds can reduce underwater visibility after wind or rain, especially in winter months.
Low risk: Stingers (box jellyfish)
Box jellyfish and other stingers may be present in warmer months, particularly January to March.
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Getting in
Located in Halls Head, Mandurah. From central Mandurah, head south-west towards Halls Head. A large car park overlooks the dive site. Park here and walk down a set of steep steps to the beach, then cross the sand to reach the reef.
Good-sized car park right above the site, large enough to gear up before descending the steps to the beach.
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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.