The Death Mountain Secret. Go get the drillshaft behind some destructible rocks nearby. To start this quest talk to dugby who is south of goron city at the goron hot springs.
It is given to link by the young goron dugby who can be found at the goron hot springs in the eldin canyon region. To begin the death mountain s secret side quest speak to a young goron named dugby who is swimming in the goron hot springs southeast of goron city during the day. Dugby is soaking underwater when he speaks to link causing his speech to be garbled and sound like gibberish.
Here you can find the quest walkthrough where to start death mountain 39 s secret and all quest rewards.
It s hard to make out what he s saying but he apparently hid something somewhere and if we find it it s ours. Talk to dugby during the day in the goron hot springs to start the quest. Head toward bridge of eldin to the point where small lava falls overhang the path. Journals were found at the campsite that was abandoned by the hikers many without their clothes and even one according to his tracks.