The 4rth sea chart
In Link and the legend of Zelda, Phantom Hourglass, you get the hammer in the isle of ruins, or the island of the dead.
you get the hammer in pyramid island
yes you get them in pyramid island temple
it is on eddo's island
At the Goron island dungeon
the hammer is in the island that is in the 4th sea chart in the pyramid island.
you get it in the temple of courage at modlia island
in the ice temple on frozen island
In the temple
boomarange
go to gust island
the fourth