I haven't played my Master Mode run in 2 months, but I remember the last thing I did was acquiring the Sand and Snow Boots. I still have a lot of Shrines to complete, and only one Divine Beast left: Vah Rudania.
That takes place around sunset if I remember right. Might be good to just place a campfire there, wait til noon, and then just chill as time goes by.Going for rudania now, also does anyone know at which time can you do the shrine quest next to the gerudo tower?