Meet the site
Roberts Point is a small shore dive on the Halls Head coast beside the entrance to the Mandurah Ocean Marina. The Marine Life Network describes easy entry by walking over the reef and then entering the gullies with care, with nice small swim-throughs in 2–5 m.
The coastal limestone here is weathered into gutters, low ledges and swim-throughs covered in algae. Sea dragons are seen occasionally, and the reef supports smaller marine life typical of the Mandurah coast: wrasse, buffalo bream, sweep, herring cale, octopus, crabs, nudibranchs and sea stars. It is a site for a relaxed shallow dive or snorkel rather than a long swim.
The point is relatively exposed, and visibility drops in seas over 1 m, so it needs a calm morning. The main local hazard is the boat channel into the marina: stay on the reef side, tow a flag and surface carefully.
Roberts Point suits Mandurah locals and visitors who want a quick shallow dive without a boat, including new divers practising navigation in a small area. It pairs well with Blue Bay, a few minutes south along the Halls Head coast.
Published information comes from one source, and precise coordinates are not given. Check entry conditions on the day.
Because the site is so shallow and close to shore, it is also a good place for a first night snorkel in calm weather, when octopus and crabs are active. As with any site on this stretch of coast, avoid the days after heavy rain, when runoff and estuary water reduce visibility, and keep an eye on the tide, as the reef platform is slippery at low water.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Roberts Point (Mandurah) is recorded as Shore/Rock Platform in Mandurah & Peel. The listed access is shore. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Roberts Point (Mandurah) suitable for my certification?
The record lists Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Roberts Point (Mandurah) through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Occasional weedy seadragons, wrasse, buffalo bream, sweep, herring cale, octopus, crabs, nudibranchs, sea stars
Location
Shallow coastal limestone reef at Roberts Point, Halls Head, just south of the Mandurah Ocean Marina entrance channel.
Facilities nearby
Beach parking at Halls Head; cafes and toilets around the Mandurah Ocean Marina.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
marinelife.org.auRecord updated 26 Sept 2026. Source claims are being reviewed.