Whyalla & Cuttlefish Coast

Whyalla’s Cuttlefish Coast hosts the only known dense breeding aggregation of giant Australian cuttlefish, normally building through May and peaking in June and July. The animals gather over shallow rocky habitat near Point Lowly and Stony Point, making the encounter accessible to snorkellers and shore divers.

Best time
Jun–Jul
Certification
Open water
Budget
$ · under $2,000
Trip length
2–4 days
Trip style
Land based, Shore dive, Day trip
Access
Moderate

The short version

Known forOnly known dense giant Australian cuttlefish breeding aggregation.

Main tradeoffThe core site is temporarily closed to all in-water activity at verification.

Whyalla & Cuttlefish Coast dive region

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Your outlook

Explore 4 dive sites

Browse the map and wildlife below, or add an optional preference to narrow Whyalla & Cuttlefish Coast.

Most relevant wildlife

  • Giant Australian cuttlefishMay–Aug
  • Humpback whaleNo reliable month
  • Southern right whaleNo reliable month
  • Blue-ringed octopusNo reliable month

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4 sites shown.

Conditions referenceSeason, water and visibilityBest Jun–Jul · Mild current · 12–24°C (coldest Jul, warmest Jan)

No trips are running. A 90-day exclusion began 1 July 2026 between Black Point and Stony Point, prohibiting swimming, snorkelling, diving and anchoring. Reopening requires confirmation from South Australia park authorities. The months below are the season it kept when it was operating, shown for reference only.

Best months Operating Closed / no trips
Current
Mild
Water temperature
12–24°C (coldest Jul, warmest Jan)
Visibility
5–15m: Shallow coastal visibility changes with wind and swell.
Experience
The normal shore profile is shallow, but cold water, uneven entry and low visibility require suitable exposure protection and comfort.

01 · Marine life

What you may see

rareoccasionalcommonly seenpeak seasondestination closed

Sightings are never guaranteed. The bars show typical likelihood by month.

Giant Australian cuttlefishSepia apama
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchdestination closed
Aprildestination closed
Mayoccasional
Junepeak season
Julypeak season
Augustoccasional
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed

Normal aggregation calendar; access is currently prohibited in the core site.

Humpback whaleMegaptera novaeangliae
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchdestination closed
Aprildestination closed
Maynot seen
Junerare
Julyrare
Augustrare
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed

Possible in the region; no unsupported monthly peak is applied.

Southern right whaleEubalaena australis
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchdestination closed
Aprildestination closed
Maynot seen
Junerare
Julyrare
Augustrare
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed

Coastal migration does not make an underwater encounter predictable.

Blue-ringed octopusHapalochlaena sp.
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchdestination closed
Aprildestination closed
Mayrare
Junerare
Julyrare
Augustrare
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed

Possible in the region; no unsupported monthly peak is applied.

See all 8 species
Common dolphinBottlenose dolphinLoggerhead turtleGreen sea turtle

02 · Dive sites

Dive sites worth knowing

A starting point, not a ranking. Conditions decide what works on the day.

01

Black Point

Black Point: Boundary-area rocky habitat.

1–8m · Mild current

02

False Bay

False Bay: Upper Spencer Gulf habitat.

2–12m · Mild current

03

Point Lowly

Check the official exclusion map before any visit.

1–10m · Mild current

See all 4 dive sites
Stony Point
03 · LogisticsGetting there and costsModerate. Fly to ADL. Typical trip $.

Route overview

Moderate

Reachable but with some friction: a 4.5h overland transfer.

Airport options

ADL

Adelaide Airport

About four to five hours by road to Whyalla, or an onward domestic flight to WYA

Typical trip cost

$

under $2,000

Per person, excluding international flights.

  • Independent shore access is inexpensive, but cold-water hire, guiding, Adelaide transfers and accommodation add cost.

Sources & last checked

Checked September 2026

Research is source-backed, but conditions and fees should still be confirmed locally.

View 4 sources and checking notes

Note on the data: Closure status is time-sensitive and must be rechecked after 29 September 2026. No reopening is assumed. Water temperature: Rounded regional surface-water bands; winter shore water may feel colder during long, shallow dives. Access: Road metric from Adelaide; a flight to Whyalla can shorten the trip but adds a domestic leg.