The giant humpback whales off Perth are a common sight from September to November and these 'gentle giants' often migrate in large groups. The Perth whale-watching boat trips are able to get close enough to the humpback whales to observe them in great detail and numerous photo opportunities are available during the cruise. However, there are strict rules when whale watching in Perth and these include no swimming, feeding or touching of the whales. Also, marine vessels should maintain a reasonable distance from the whale and not cause the whale to alter its direction. 

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