Mafatu grew in his courage becausewhen he was little his mother was killed in the sea on a bad stormy night . After that he was always afraid of the sea.

One way I think Mafatu showed his courage was to go out in the sea to prove that he wasn’t afraid of the sea any more.

Another way I think Mafatu showed courage was when he was thrown up on the beach by a BIG wave and got a Big  gash  in his leg, the next morning he got up and walked around!

those are a couple of ways that Mafatu showed his courage.