Meet the site
Pearson Island, one of the Investigator Group off the west coast of Eyre Peninsula, is among the most remote dive sites in South Australia. The Marine Life Society describes a 213-hectare island split into northern and southern land masses by a shallow tidal channel, with an automatic light at its centre and a safe anchorage and landing point in a cove on the eastern side. It is noted for clear water. Underwater, large granite blocks go out to depths of more than 30 m. The boulders shelter gorgonia, soft corals, zebrafish, wrasse, moonlighters, nannygai, wobbegongs and harlequin fish, and seals are regularly seen. About 50 Australian fur seals breed on a sheltered beach and should not be disturbed. The island is also famous among biologists for its isolated populations of rock-wallabies and other wildlife that have evolved in isolation. Pearson Island is an expedition destination: far offshore, exposed to the Bight, and accessible only with a large, well-equipped boat and a multi-day weather window. It is protected as a conservation park, and landing requires authorisation. For the few who reach it, the combination of clear oceanic water, towering granite and unfished marine life is exceptional. It suits highly experienced divers with expedition-level planning and safety equipment. Any trip should include oxygen, a satellite communication device and a conservative dive plan, since evacuation would require an aeromedical retrieval from the mainland.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Pearson Island is recorded as Island in Eyre Peninsula. The listed access is boat (multi-day/liveaboard). 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.
- Planned depth
- Confirm the intended route and training requirements; the recorded maximum is not a target.
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 Pearson Island suitable for my certification?
The record lists Deep/Advanced + experience. 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 Pearson Island 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
Gorgonia, soft corals, zebrafish, wrasse, moonlighters, nannygai, wobbegong sharks, harlequin fish, western blue groper, fur seals, sea lions
Location
213-hectare granite island in the Investigator Group off Elliston, split by a shallow tidal channel, with large granite blocks dropping beyond 30 m, clear water and a small fur seal breeding colony.
Facilities nearby
None.
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.