Zelda: Ocarina Of Time Master Quest Part 59: Puzzled

Oh boy, it was only a matter of time before I had one of these in the series. XD After passing the first few rooms in the part through some tedious block pushing and pulling, I get genuinely stuck as to what treasure chest I have access to and how I can get it. Don't worry, I know what I am supposed to do after this part. :) I just got stumped and ended off my recording for the day.

Enjoy!