What is a Kass) Kass is the parrot looking guy with the Accordion who you can see by the stables. He’s also in certain remote places around the world and will tell you a riddle which will reveal a Shrine if you get it correct.

Dirtywater ganon)
STAGE 1: Waterblight has an immense amount of reach with its spear so stay around mid range. The two main attacks to look for is the stab and swipe. When it stabs, dodge to the side at just the right moment and get a Flurry Rush on it. When it swipes, backflip and Flurry Rush.
STAGE 2: at stage two, Waterblight will use it’s immensely powerful magic to raise four platforms a few inches off the ground and put some water in the room (shock and horror). At this stage it is pretty much mandatory to be on one of the four platforms if you don’t want to die. Waterblight is basically invulnerable to melee attacks at this point so you’ll need to either lob some bombs at it, chuck your weapons at it or grab a bow and shoot the thing down (i reccomend Thunder arrows and Bomb arrows). At this stage it will chuck a few ice blocks at you so you should equip Cryonis to shatter them before they hit you.

The only other way is to beat the four Ganon bosses, other than that, you’re gonna need to go shrine hunting!