Just follow the story.You will eventually find it if you just keep on exploring.
You beat the isle of gust.
You have to do the isle of gust and you`ll get it!
on the isle of gust in the north western sea .
in the temple of wind on the isle of gust
you have to dig near a tree on molida island
My friends wont help me.
in the northeastern sea next to the isle of gust
Go to zauzs island (exactly north of the isle of gust EXACTLY NORTH)
there are certain wind mills you have to blow(i can fly).
In Link and the legend of Zelda, Phantom Hourglass, you get the hammer in the isle of ruins, or the island of the dead.
Zauz can be found in Zauz's island, north of the Isle of Gust
In the Northeaster sea.