The Western Australian coastline between Perth and Rottnest offers some of the most unique whale watching opportunities in the world - those of the Southern humpback. Within minutes of leaving the Fremantle harbour, these majestic whales can be sighted enjoying the luke warm waters of the Indian Ocean. As the only Western Australia company to offer on onboard expereinced marine biologists, you are assured of a fascinating and indepth explanation on these unique marine animals.