Very cool glitch
Do this at the Horseback archery Range. Go to where the Gerudo Fortress is, right before the big slope towards the archery range. Start riding up it, then throw a Deku nut on your way up. Stand there where while Epona continues on her way up...Push the A button and dismount her. When you get back onto her, you seem to be riding in the sky, and almost everything is gone!
