you have to find the three key shards which open to the boss gate its very easy
goron mines
In the Goron Mines.......You will see it
the gorons mines
you gotta buy one
In the Goron Mines after the Mid-Boss
in the goron mines
it is the goron mines aka fire temple. it is in death mountain.
You get in the goron mines{the second temple in the legend of zelda twilight princess}after defeating the mini boss.
you go to the goron mines and finish it at the end you will meet darbus
After you have beaten the Goron Mines, a cut scene is triggered where you get her back.
get iron boots and beat the goron at sumo reseling with the iron boots from your villilg
when you enter the village from Hyrule Plains, go straight down the road. At the end, there is a left turn. Walk on that road, and eventually you will get to the Mines