Meet the site
Whyalla began as a company town built around iron ore, and its original jetty, built in 1901 by BHP to ship ore from the Iron Knob mines to the smelters at Port Pirie, was the reason the settlement existed. The Marine Life Society describes the original jetty as disused for about 40 years with extensive growth on the pylons, in about 10 m. Decades without maintenance have allowed a dense community of sponges, ascidians, soft corals and algae to colonise the remaining iron and timber. The Society lists tommy ruff, garfish, squid, blue swimmer crabs, Port Jackson sharks and whiting among the fish life, and the piles also host nudibranchs, crabs and small octopus. In winter, cuttlefish may be seen, as the upper gulf is their stronghold. The site is lightly documented and rarely dived, partly because the famous cuttlefish aggregation draws visiting divers away from town and partly because access is easiest by boat. It is a good option for divers staying in Whyalla who want something different, particularly outside the cuttlefish season. Note that this is different from Whyalla's new foreshore jetty, opened in 2020 (see separate entry). Check current access with the local dive shop before diving, as it lies near industrial port areas. Whyalla's steelworks harbour and ore-loading facilities remain active, so boat traffic, tugs and barges can pass nearby; fly a dive flag and keep a lookout on the boat. Outside the cuttlefish season the old jetty is one of the few structure dives close to town, and a torch brings out the colours of the sponges and ascidians in the shade of the piles.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Whyalla Old Jetty is recorded as Jetty/Pier in Whyalla & Upper Spencer Gulf. The listed access is shore or boat. 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 Whyalla Old 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 Whyalla Old 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
Tommy ruff, garfish, squid, blue swimmer crabs, Port Jackson sharks, King George whiting, nudibranchs, crabs, octopus, sponges, ascidians, soft corals
Location
Original 1901 iron-ore jetty at Whyalla, disused for decades, whose remaining piles support extensive growth in about 10 m.
Facilities nearby
Whyalla marina ramp; full town services; air fills and gear hire at Whyalla Dive Shop.
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.