Hidden Zora Cave

[Clucluclu]

I was playing through OoT and I noticed that there is a cave on the side of the hill that is very high up in Zora Fountain. I can't seem to figure out how to reach it, and I don't even know if it can be reached.. Anyone know what it is?

 

[Chrono]

Blow up the rock below it, there is nothing there really except for skulltulas. No mystery behind it.