122801d3__Link_Between_Worlds__and_more__Directions_and_Notes
[Holes] 2 [Location] Death Mountain Trail [Requirements] Bomb [Directions and Notes] 
Heading up the trail toward Death Mountain Crater, Link will come to stone steps that are blocked by several boulders. After removing the boulders blocking the steps and climbing up, at the top is another boulder. Bomb the boulder and jump inside. A cow sits inside.
The Legend of Zelda: Ocarina of Time Secrets - Zeldapedia, the Legend of Zelda wiki - Twilight Princess, Ocarina of Time, A Link Between Worlds, and more
Directions and Notes