Southern right whale
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A huge whale joins surfers off the coast of Sydney

1 July 2014 Last updated at 14:44 BST

Surfers in Australia paddle really close to a southern right whale off the coast of Sydney on Sunday morning.

This amazing footage from a helicopter captured the moment when the whale appeared.

But the surfers soon moved away because it is very dangerous to get too close to the massive mammal.

Jenny's got the story.