Hidden Grottos:
Many areas in Hyrule contain hidden grottos, often marked by a circle of rocks or a lone soft patch of dirt. Use a Bomb on the rocks or play the Song of Storms on the dirt patch to reveal a hidden hole. These grottos often contain Rupees, Heart Pieces, or even Great Fairies.
Great Fairy Fountains:
There are six Great Fairy Fountains scattered across Hyrule. Visiting them will grant Link powerful magic upgrades, such as the Spin Attack upgrade, Farore's Wind, Din's Fire, and Nayru's Love. Each requires a specific item or action to access.