Migaloo Protection
Officials in Queensland state have declared Migaloo a "special-interest whale" and banned anyone from coming within 500 metres of him.
Anyone coming too close by boat, jet ski or aircraft will face a fine of $13,500 (£8,000).
Officials said the whale needed to be left alone to migrate up the coast.
"The whale-watching regulations are there to protect the whales, but also to protect people from these huge, unpredictable animals," said Queensland's Environment Minister Kate Jones.
"Adult humpbacks can weigh more than a fully-loaded semi-trailer so you need to stay out of their way," she added.
Migaloo is the only known all-white humpback whale in the world, Prof Peter Harrison of the Southern Cross University Whale Research Centre told the BBC News website.
"He's a very special whale," Prof Harrison said. "Nothing should divert him on his migration route to the Great Barrier Reef."
Migaloo, which means "white fella" in a Queensland aboriginal dialect, is from Australia's Great Barrier Reef area, but migrates every summer to the waters off Antarctica to feed on krill...
