Fabulous Five Froggish Tenors

In The Legend of Zelda: Ocarina of Time, there are five toads that can be located underneath Zora River. By standing on a protruding log and playing your Ocarina, the frogs start croaking to your tune. A successful tune engages a sudden growth spurt and you are awarded with 50 rupees. A mini-game is triggered where the player must play certain tunes in order to make the frogs leap to catch the butterflies suspended above their heads.The outcome is a Heart Piece.