Guide to Heart Pieces

Death Mountain Crater--Hidden spot in the wall--Child or Adult
Death Mountain Crater--at the top of the left smoke column--Adult, magic bean leaf
Death Mountain Trail--Above Dodongo's Cavern entrance--Adult, magic bean leaf
Desert Colossus--Outside, on the top of the arch before the temple entrance
Gerudo Valley--behind the big waterfall. Swim behind it and you'll see the ladder--Adult or Child (with magic bean leaf)
Gerudo Valley--In a crate on a ledge over the river--Adult, Longshot. Or Child, chicken
Gerudo's Fortress--Reward in the Horseback archery contest--Adult, Epona
Gerudo's Fortress--In a chest on the highest rooftop of the Theives' Hideout--Adult, Hookshot, Scarecrow's Song
Goron City--Light the torches and throw bombs in the spinning vase--Child, bombs
Graveyard--Beat Dampe's ghost in 59 seconds or less--Adult, Longshot
Graveyard--Reward in the Heart-Pounding Gravedigging Tour--Child
Graveyard--In a box on a shelf above the magic bean leaf--Adult, magic bean leaf
Graveyard--Play the Sun's Song in the unmarked grave with the single Redead--Child or Adult, Sun's Song
Hyrule Market--Reward in the Bombchu game (prizes are random)--Child
Hyrule Market--Find the Dog lady's dog roaming around during the night and bring it to her--Child, night only
Hyrule Market--Reward in the Treasure Box game--Child, Lens of Truth
Hyrule Feild--Bomb the hidden hole in the middle of the fences in front of Lake Hyrule and buy it for 10 rupees from a Buisness Scrub--Child or Adult, bombs or Megaton Hammer(Stone of Agony)
Hyrule Feild-- Deep in a pond in a hidden hole near a tree between Hyrule Castle and Gerudo Valley(close to Gerudo Valley)--Adult, Iron Boots or gold scale
Ice Cavern--in red ice, in a room--Adult, blue fire
Kakariko Village--Reward for collecting 50 Gold Skulltulas--Child or Adult, 50 G.Skulltulas
Kakariko Village--In the cow's pen--Child or Adult
Kakariko Village--On a ledge in the Windmill--Adult, after you beat Dampe
Kakariko Village--Talk to the guy on the rooftop-- Adult,Longshot, or Child, jump from the tower
Lake Hylia--scientist guy gives it to you after you dive to the bottom of his lab--Adult, gold scale
Lake Hylia--Reward for catching a 10 pounder--Child
Lake Hylia--On the very top of the Labratory--Adult, magic bean leaf (or Hookshot and Scarecrow's Song)
Lon Lon Ranch--move the crates around so you can crawl through the small hole--Child
Lost Woods--Play Saria's Song to the one Skull Kid--Child, Saria's Song
Lost Woods--Prize in the playing class with the two Skull Kids--Child
Zora's Domain--Light the 4 torches and check behind the waterfall--Child, Deku Stick
Zora's Fountain--On an iceberg--Adult
Zora's Fountain--At the bottom of the lake--Adult, Zora Tunic, Iron Boots
Zora's River--Win the bug-catching game once the frogs are all big--Child, the six "gray note" songs
Zora's River--On a tall platform in the center section of the river--Child or Adult
Zora's River--Use the chicken to float over to the platform near the waterfall--Child, chicken
Zora's River--play the Song of Storms to the frogs--Child, Song of Storms