Meet the site
Penneshaw's jetty is the first thing most visitors see of Kangaroo Island – the SeaLink ferry from Cape Jervis docks beside it. Built in 1901 and extended in 2012 to take cruise-ship tenders, it also supports recreational diving, with gorgonian coral documented on the structure. The Marine Life Network describes it as a 6 m pylon dive that is 'shallow, safe and easy', excellent for photography and better at night.
The pylons carry gorgonians, sponges and ascidians, and the sand and weed around them hold goatfish, trevally, salmon and drummer, with octopus emerging on night dives. Backstairs Passage water is often clearer than Nepean Bay's, and cuttlefish, leatherjackets and occasionally seadragons turn up. Penneshaw is also home to a declining colony of little penguins, which nest along the foreshore – keep lights low and do not disturb them on night dives.
The ferry is the main hazard: never dive near the berth when a vessel is due, stay under the jetty's outer structure only when you are sure of the timetable, and tow a float. Hog Bay, where the town began and where Baudin's crew carved Frenchman's Rock in 1803, is right beside the jetty and has its own reef snorkel (separate row). The jetty suits beginners, photographers and anyone wanting a dive before driving on across the island. Fill cylinders in Kingscote or bring them from the mainland on the ferry, as there is no dive shop in Penneshaw. The jetty's timber piles and the 2012 extension offer different surfaces for growth, so it is worth exploring both sections.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Penneshaw Jetty is recorded as Jetty/Pier in Kangaroo Island. 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.
- 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.
- Lines and obstructions
- Discuss any known entanglement concerns and the suitability of the planned area.
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 Penneshaw Jetty 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 Penneshaw Jetty 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
Gorgonians, sponges, ascidians, goatfish, trevally, salmon, drummer, cuttlefish, leatherjackets, octopus (night); little penguins ashore
Location
Penneshaw's timber jetty (built 1901, extended 2012) beside the SeaLink ferry terminal on Backstairs Passage; a shallow, easy pylon dive with gorgonians.
Facilities nearby
Town parking, toilets, cafes, hotel, Gateway Information Centre and ferry terminal; no fills – nearest Kingscote (60 km).
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.auen.wikipedia.orgen.wikivoyage.orgRecord updated 26 Sept 2026. Source claims are being reviewed.