Marine life
Dwarf Minke Whale
Balaenoptera acutorostrata subsp.
Curious whales that approach snorkellers on the northern Ribbon Reefs each winter — a genuinely rare permitted interaction.
Each winter, dwarf minke whales gather on the northern Ribbon Reefs and do something unusual: they approach people voluntarily and stay.
A small number of permitted liveaboard operators run minke interactions, conducted on snorkel with swimmers holding a surface rope while the whales choose whether to come in. Encounters lasting hours are not unusual, and the whales frequently make repeated close passes.
The interaction is heavily regulated, research-linked, and limited to permitted vessels — which is why the season is a fixture of the Cairns and Port Douglas liveaboard calendar.
| Scientific name | Balaenoptera acutorostrata subsp. |
|---|---|
| Typical size | Around 7–8 m |
| Peak months | June, July |
| Documented sites | 2 |
| States | Queensland |
- sleek, small rorqual with a sharply pointed snout
- distinctive pale shoulder and flipper patterning
- no visible blow in most conditions
- approaches slowly and repeatedly rather than passing once
- Voluntarily approaches stationary snorkellers.
- Makes repeated close passes, often for extended periods.
- Aggregates on the northern Ribbon Reefs in winter.
In-water etiquette
How divers behave around this species affects both the animal and everyone else's encounter.
- Hold the rope and stay still — the entire protocol depends on the whales choosing to approach.
- Never swim toward, dive down to, or pursue.
- Follow the permitted operator's briefing exactly.
Where to see them
Sites where this species is documented as a reliable encounter.
Operators servicing those sites
Businesses documented as diving the sites above. Confirm seasonality and requirements directly.
Often seen on the same dives
Frequently asked questions
When is minke whale season on the Great Barrier Reef?
Broadly June and July on the northern Ribbon Reefs, accessed by permitted liveaboards from Cairns and Port Douglas.
Is it scuba or snorkelling?
Snorkelling. Swimmers hold a surface rope and the whales approach voluntarily.
Last researched: September 2026. Dive businesses change frequently — confirm current services, prices and requirements directly with the operator before booking.