The male mammals have been having a whale of a time as they swim up the coast, singing out for a potential partner. 

NSW National Parks and Wildlife Service marine mammal expert, Lawrence Orel, said the whale migration had several parallels with the popular reality TV show “The Bachelor”. 

“Male whales looking for love are really called “bachelors” and they are often found in ‘bachelor pods’,” Mr Orel said.

“Whale migration season brings a series of romantic gestures and acts of oceanic chivalry, as whales journey to warm northern waters to find female whales and achieve the ultimate bachelor fairytale ending - a whale calf.”

Mr Orel said humpback bachelors sing for hours to charm a partner. 

“The song can be heard hundreds of kilometres away,” Mr Orel said. 

“Humpback bachelors are also known to fight for access to females, with unsuccessful males grouping together to form bachelor pods. 

“Humpback bachelors are known to escort their new partner and calf through the dangerous waters back to Antarctica.”

The males will help train their offspring to warn off predators and accompany their new entourage back to Antarctic waters for feeding. 

Mating takes place every two to three years for a female whale, as her gestation period lasts between 10 and 14 months. 

Humpback whales migrate about 5000km on average, one of the longest migratory journeys of any mammal on Earth.