You open one of the graves, don't remember which. jump in, and if you see a ghost (Dampe FYI) talk to him. follow him through the race and you will get it as a reward.
When you go in the first grave on the left is where it is. Pill it and go into the hole. Follow the gravekeeper's spirit until you get it.
shoot it with arrows or hook-shot then attack with sword
Visit the ghost of the grave keeper and keep up with him and get the hook shot
You Go to Kokiri Village and go to the lost woods and find Where Saria's Sits and Then use Ur hook shot on the tree above you and u are there.
After you have Epona go to East Termina and head towards Ikana Canyon you will have to jump some fences, and you will meet a Guy on top of a cliff who asks you to show him a Mask you need Garo's Mask, but instead go left of him and you will Find the Ikana Graveyard.
when your in the water temple find and kill mirror link and the treasure is the longshot
He was shot by a guard when he joined Viktor in the graveyard
This is called a hand shot
All you have to do is put it to a setting so you press the button and it aims then you can fire it. I dont know what thing you have to play the game but i use a 3DS so if you have that too you can put it to II X Y I.
it is made of treasures gained within the water temple and obtained after the duel with Dark link.
you mus go to the gravejard as an adult
The upgraded hook shot is called the "long shot", and there isn't a long shot in tloz Wind Waker.