Zelda Minish Cap - Goron Quest
Location: Eastern Hills | Item(s) Required: None | Who: Eenie
After your very first visit at Castor Wilds, proceed to the Eastern Hills. A farmer referred to as Eenie and Meenie (his brother) are planting crops for their farm. In brief, fuse the kinstones with him and the Goron will become much stronger. Finally, dig into the Goron Cave.
Location: Mt. Crenel | Item(s) Required: Mole Mitts| Who: Mysterious Wall
Proceed to the top-left of Mount Crenel. Head towards the ladder located on the far left, then you should find two different caves. In this case, dig open the cave on the left using the Mole Mitts. Once the ground is cleared, a small circular symbol should appear on the wall at the very top. Finally, fuse the kinstones with it and a Goron will appear in the Goron Cave.
Location: Eastern Hills | Item(s) Required: Mole Mitts | Who: Mysterious Wall
At Eenie's farm at Eastern Hills, you should be able to locate a cave at the top-left of the farm. Utilize your Mole Mitts to clear an opening into the far top-right corner of the cave. Finally, another symbol should appear on the wall. Now, fuse kinstones with the Mysterious Wall and another Goron should arise in the Goron's Cave.
Location: Minish Woods | Item(s) Required: Mole Mitts | Who: Mysterious Wall
In the south-west area from Syrup's Hut in Minish Woods, you should be able to find a cave. Utilize your Mole Mitts to create a path from the entrance all the way to the top-right corner of the cave. Finally, another symbol should appear like the previous quests. Fuse kinstones with the wall and another Goron will arise.
Location: Tribly Highlands | Item(s) Required: Mole Mitts | Who: Mysterious Wall
In this Goron quest, start off by entering the Tribly Highlands from Mount Crenel. First, travel upwards to the first bridge, then dig your way the cave present through with your Mole Mitts. Make sure the path proceeds rightwards in the cave. Once you hit the far wall, another symbol should appear. Like other Goron quests, fuse kinstones with the Mysterious Wall and a Goron will appear in his cave.
Location: Lake Hylia | Item(s) Required: Mole Mitts, Roc's Cape | Who: Mysterious Wall
At Lake Hylia, there will be several different caves. For the purpose to complete this quest, proceed to the northern most cave by jumping from island to island with the help of the Roc's Cape. Now, utilize your Mole Mitts to dig into the cave towards the left. Then, dig downwards on the first turn. In brief, continue to dig through the leg of the cave until you eventually find the symbol on the wall. Finally, fuse kinstones with the mysterious wall and the final and last Goron will appear.
After you have completed all of the Goron Quests mentioned above, journey your way to Goron's Cave located at the bottom-left area of Lon Lon Ranch. Now, travel upwards until you see a platform. Finally, cross the platform and open the chest present at the platform. The chest should contain an empty bottle! (According to the screen shot above)