Upon? X3 *frankly, i have no idea what you're talking about
I dont think you can. Unless there is a cheat somewhere.
If you are talking about the Second Sage, go to Forest Haven, Get out your Grappling hook, and swing into the Water Fall with the Musical Notes coming out. Then, you will meet Makar. He has the Violin.
No because hyrule is no longer submerged in water.
You never kill Zelda.
near each island you will see fish hopping out of the water go near them until you see their shadows in the water ( you must be in your boat) drop the three berrie type bait in the water and they will eat it and put the island on your chart
Breathe under water
To get the water tunic you have to find or buy it.
You should try a walkthrough
Go really fast.
you must lower the water
go to barnes bombs in kakariko village
You can't you have to get the salvage crane from eddo