The Old Wayfarer is the one in Bannan Island. To make him appear, you will need to get the mermaid inside the Wayfarer's house. Here is the step:
1. Once you have Boomerang, clean all the monsters outside Wayfarer's house (there are a number of them so make sure you clean them all).
2. Enter the house talk to Wayfarer about Mermaid.
3. Once you go outside you will encounter the Mermaid around the water.
4. Don't get too close to the mermaid, once you have a vision of her, throw boomerang.
5. The Mermaid will automatically talk to you, Choose whatever answer (not sure about this, I choose the second answer)
6. Go inside the Wayfarer's house once more and tell him that you have met mermaid
7. Thereafter, Go straight to your ship, talk to Linebeck. Do not go set sail!
8. Return back to Wayfarer's home, at this moment, she should be inside in the small pool.
9. Go to the South East Sea and Viola! 2 Ships the one farther from the "W"-like symbol is the Wayfarer's boat.
To find the old wayfarers ship you have to go to the southeastern part of the sea chart. You will see two travellers' ships and the closest one to you is the old wayfarer's ship. You give him the wood heart and he will tell you to go to his house because he left it there. Then you go to Modilia Island (or whatever that's called) and look for it.
It is around Harrow island and the ice island
it is on the south Easter map between harrow isle and the ice temple
If you go to bananna island on the northern sea chart, there are three unidentified islands and one of them are near the rocks... that's bananna island. The wayfayer is there.
get the swordsmen scroll
He's a guy that wants the only mermaid in phantom hourglass then travels around in the seas
30-35.
Phantom Hourglass is a direct sequel to Wind Waker and has the same Link. He is not much older than in Wind Waker.
show them to the old wayfarer
bring it back to the old wayfarer, and he will give you a heart container.
He is 9 years old, as he is the same Link from The Wind Waker, who is also 9.
In Phantom Hourglass, Link is 9 or 10 because in The Wind Waker (the prequel), Link is 9.
Try a Game Stop or maybe a Best Buy in there old section videos. Or actually look online.
Oshus is the old man from the beginning of the game,or the "grandfather" of the fairy
if you've done the mermaid sidequest on the old wayfarer's island, bring the letter to the mermaid, and she'll give you a wisdom gem.
Give it to the Old Wayfarer (not in his hut but somewhere in the middle of the South East Ocean in a ship)