A whale watching cruise is exciting because you never quite know what the whales will do. One trip might bring a series of huge breaches. Another might be quieter, with whales travelling steadily along the coast, surfacing for air before slipping back below the water.
That variety is part of the appeal. Humpback whales are wild animals, and every sighting depends on the whales, the weather, the sea conditions and where they are in their migration. Once you know a few common behaviours, it becomes easier to understand what you are seeing from the boat.
Here are some of the whale behaviours passengers may see during a Coffs Harbour whale watching cruise, and what they can add to the experience.
The Blow
The blow is often the first sign that whales are nearby. From a distance, it can look like a brief puff of white mist above the water. This happens when the whale surfaces to breathe, releasing warm air from its blowhole before taking in another breath.
For passengers, the blow is a useful clue. It gives the crew a starting point and helps everyone on board begin watching the whale’s movement. Sometimes a whale will surface several times in a predictable pattern. Other times, it may appear briefly and then dive again.
This is one of the reasons it helps to keep scanning the water rather than watching only one spot. A blow may appear ahead of the boat, off to the side or further along the coastline.
The Tail Fluke
A tail fluke is one of the most recognisable whale watching moments. This is when the whale arches forward and lifts its tail out of the water before diving.
A clear tail fluke often means the whale is heading into a deeper dive. Once that happens, there may be a wait before it surfaces again. The crew will usually watch the whale’s last direction of travel and the time it has been underwater to judge where it may appear next.
For passengers, this part of the cruise is about staying alert. Once a whale dives, it may surface in a different spot, so it helps to keep watching the water and listen to the crew’s direction rather than focusing only on where it was last seen.
Tail Slaps and Fin Slaps
Tail slaps and fin slaps can be dramatic to see from the boat. A tail slap happens when a whale lifts its tail and brings it down hard onto the water. A fin slap, also called a pectoral slap, involves one of the whale’s long side fins striking the surface.
These behaviours can create a loud sound across the water, especially on calmer days. They also give passengers a better sense of the whale’s size and strength.
People often want a simple explanation for why whales slap the water, but behaviour can have more than one possible meaning. It may be linked to communication, movement, social behaviour, irritation or play. The interesting part is watching what else is happening around the whale. Is it alone? Are there other whales nearby? Is it moving steadily, or staying in one area? Those small details help make the sighting more meaningful.
Breaching
Breaching is the behaviour many passengers hope to see. A humpback whale can launch much of its body out of the water before landing with a huge splash. It is powerful, loud and impossible to forget if it happens near the boat.
Some days bring repeated breaches. Other days do not. That doesn’t make a quieter cruise less worthwhile. A travelling whale, a close surface, a tail fluke or a mother and calf sighting can be just as memorable in a different way.
This is an important part of whale watching to understand before you go. The whales are not performing for the boat. The best moments happen naturally, and every cruise has its own character.
Travelling Whales
During the migration season, many humpback whales pass the Coffs Coast as they make their way north or south. Some are clearly travelling, surfacing for air, diving and continuing along the coast.
Travelling whales can be peaceful to watch. They may not be throwing themselves out of the water, but seeing the steady movement of such a large animal in its natural environment is still impressive. It also gives passengers a real sense of the migration itself.
From the boat, you may notice that travelling whales surface in a rhythm. They breathe a few times, dive, then appear again further along their path. Following that movement across the water is part of what makes a cruise different from watching from land.
Curious Whales
On some cruises, whales may slow down, change direction or spend more time near the surface. These moments can feel very special, especially when a whale chooses to come closer on its own.
Responsible whale watching is important here. A good cruise does not chase whales or crowd them. The most memorable encounters often happen when the boat gives the whales space and allows any closer interaction to unfold naturally.
When a whale does come closer, passengers get a much better sense of its scale. You may see the curve of its back, the shape of its dorsal fin, the texture of the skin or the movement of the water around its body.
Mothers and Calves
Later in the season, passengers may have the chance to see mothers travelling with calves. These sightings can feel quite different from watching adult whales on the northbound migration.
Mother and calf pairs may move more slowly, rest closer to the surface or stay nearer to the coast. Calves can also be more active at the surface, although their behaviour varies from one sighting to the next.
These encounters need patience and care. Mothers and calves should be given extra space, and the best view is one that respects the animals while still allowing passengers to enjoy the sighting. Watching a young whale beside its mother is one of the most memorable parts of the season for many people.
Why a Small Group Cruise Helps
The boat can make a real difference to how easily you can watch whale behaviour. When there is room to move and clear access to the water, it’s easier to follow where the whales are surfacing and see what is happening around the boat.
Whale Watch Experience runs Coffs Harbour whale watching tours aboard Pacific Explorer, with a maximum of 23 passengers. The open deck space and clear viewing areas help passengers watch the water properly, without feeling crowded or stuck in one position.
That matters because whales do not always appear where you expect them to. A blow might appear on one side, a tail fluke may happen behind the boat, or a whale may surface further ahead. Having space to look around makes the cruise feel more relaxed and gives everyone a better chance to enjoy the sighting.
You can also learn more about the boat and local approach on the Why Us page.
What Makes Each Cruise Different
No two whale watching cruises are exactly the same. Some days are more active, with breaching, tail slaps or whales spending more time near the surface. Other days are quieter, with whales travelling steadily along the coast.
Both types of sightings can be worthwhile. The key is knowing that whale watching is not only about one big moment. It is about seeing wild humpback whales as they move through the area, and recognising the signs that help explain what they may be doing.
That’s why it helps to be out with a crew that knows the local waters and understands whale behaviour. They can help passengers follow the movement, notice the smaller details and get more from the time on the water.
Book a Coffs Harbour Whale Watching Cruise
If you’re visiting Coffs Harbour during the whale watching season, joining a cruise gives you the chance to see humpback whales from the water and better understand what they may be doing as they travel along the coast.
Whale Watch Experience departs from Coffs Harbour International Marina during the season, weather and sea conditions permitting. With small passenger numbers, open viewing space and an experienced local crew, it’s a relaxed way to enjoy one of the most memorable natural events on the New South Wales coast.
Book your Coffs Harbour whale watching cruise online and choose your preferred date during the season.