In Ikana Valley, behind the waterfall, there is a mini temple like thing. To access this, you must of beat the Stone Tower temple and get the Light arrow.
The four mini bosses are the monsters you had to fight to get the arrows(Hero's Bow,Fire arrow etc.)(Hint:They are Dodongo's,Wizrobe,a Wart and a Master Goro).
You have to be strong enough for each one, like the Goro, you need 17 hearts to fight him. The mysterious man with one eye from the ledge will greet you.
The prize is a piece of heart. Tip: You might want to consider bringing lots of arrows.
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