Meet the site
North Point Reef is a deeper Rottnest dive built around a single striking feature. The UWA Underwater Club describes a unique limestone structure forming a trench about 8 m deep and 3-4 m wide, cut into the top of the reef, with sunlight rays visible through the valley above; average depth is around 18 m and maximum 26 m. Marinelife.org.au describes the same site as a large ravine within the top of a mound, the ravine bottom lying at 26 m, and notes that the ground to the north at 20-25 m is also worthwhile.
Swimming through the trench is the highlight: walls rise on either side, light filters down from the narrow opening, and fish shelter in the cracks. The deeper setting and distance from shore mean bigger fish than on the inshore reefs - buffalo bream, western blue groper, dhufish and samson fish are all possible - and the walls carry sponges and encrusting life. Nearby North Point Hole is a separate cavern site at a similar depth.
The site is demanding because it requires calm seas and precise navigation to find the ravine, and because depths of 20-26 m limit bottom time on air. It suits Advanced divers with nitrox who want something more dramatic than the shallow north-east reefs. Plan it for a flat day and combine it with a shallow second dive such as the City of York wreck. Because the ravine is narrow, keep the group small and move through it in single file, and agree on an exit direction before entering so that nobody turns back into oncoming divers. Photographers should shoot upward from the floor to catch the light rays.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
North Point Reef is recorded as Reef in Rottnest Island. The listed access is boat (day trip). 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.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Planned depth
- Confirm the intended route and training requirements; the recorded maximum is not a target.
- 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 North Point Reef suitable for my certification?
The record lists Advanced 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 North Point Reef 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
Buffalo bream, western blue groper, dhufish, samson fish, bullseyes, western king wrasse, sponges, gorgonians
Location
Offshore limestone mound off North Point, Rottnest, split by a ravine (trench) about 8 m deep and 3-4 m wide whose floor reaches 26 m.
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
uwauc.org.aumarinelife.org.auRecord updated 26 Sept 2026. Source claims are being reviewed.