The Legend of Zelda: a Link to the Past Walkthrough Part 19
Link fights the boss Kholdstare. This guy is easy. Burn his shield with your Fire Rod. After this, hit the 3 eyes with your sword or the Fire Rod. Beware with the falling ice balls, so try to walk everytime.

Our Kokiri boy gets the Fifth crystal.

He opens the Swamp Palace.

NOTE: I will make a video about the Pond of Happiness soon.

ITEMS FOUND:
Blue Mail
Heart Container
Fifth Maiden Crystal
2 Pieces of Heart