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When you ask Naturaliste Charters marine biologist Pia Markovic what she loves most about Blue Whales, there’s no wavering when she answers. “Blue Whales are the largest animal on the planet – bigger than dinosaurs,” she says. “And learning more and more about them every day is both thrilling and rewarding.”

Pia explains that it was originally understood that Blue Whales travelled solo for the most part, but over the last few years local marine scientists have discovered that they prefer to move in pods. Working with Naturalise Charters has corroborated this. “We’ve seen up to eight whales in one area, suggesting that they travel together,” she says.  

Naturalise Charters marine biologists began recording the behaviour of Blue Whales approximately three years ago out of personal interest, focusing predominantly on their behavioural patterns. “We watch the Blues in the shallow, gentle waters of Geographe Bay, and usually they don’t do very much because they’re so incredibly large,” she explains. “For us, it’s the group dynamics that are really remarkable. What direction is the pod heading in? How big are the whales? Is there a calf in the pod? Any information collected is donated to Western Whale Research, who have been conducting whale surveys in the area for the past two decades.”

The Blue Whales start arriving to Geographe Bay in November and usually stay until the end of the year, providing ample opportunity for multiple sightings. For Pia, seeing guests become involved with the spotting is a big highlight. “Guests on board the cruise can help us spot the whales. They aren’t usually expecting to see a Blue, so when they do it’s very memorable,” she says. “Each year the likelihood is increasing and nowadays we generally see them five days out of seven, so the odds are good.”