Meet the site
The 10 Metre Spire is one of the offshore West End sites that make Rottnest's far end so highly regarded by experienced Perth divers. Marinelife.org.au places it about a mile south of the West End, with the reef top at about 10 m and an average depth of 18 m, dropping to 27 m. It describes plenty of big overhangs, a large cave on the northern side that is often packed with fish, and hard and soft corals.
The spire concentrates fish in the way offshore pinnacles do. The cave and overhangs hold schools of bullseyes and old wives, while the open water around the spire can bring buffalo bream, western blue groper, dhufish and samson fish, and pelagic species when current is running. The West End Demersal Sanctuary Zone protects bottom-dwelling species across this end of the island, so demersal fish are relatively abundant.
The dive's reputation is tempered by its conditions: it needs less than 1 m of swell and very little wind, is prone to strong currents, and is a long way from help. That makes it a dive for Advanced divers with good current skills, nitrox and a well-organised boat with a pickup driver. When it all lines up, it is one of the best reef dives off Perth.
Published detail beyond the marinelife.org.au listing is scarce, so seek local knowledge before planning, and have a sheltered backup such as Roe Reef in mind for the day. A good skipper who can follow bubbles in current is essential for this site.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
10 Metre Spire is recorded as Pinnacle/Bommie 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.
- 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 10 Metre Spire 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 10 Metre Spire 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
Bullseyes, old wife, buffalo bream, western blue groper, dhufish, samson fish, yellowtail kingfish, hard and soft corals, sponges
Location
Offshore reef spire rising to about 10 m from 18-27 m, roughly 1 mile south of the West End of Rottnest, with big overhangs and a large northern cave.
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.