This page has several walkthroughs and some secrets at the bottom of the page, I don't know if they are all varified but I saw some I haven't tried, but I will tonight. The page is
here
Here is a list of some things that CAN be done in the game.
If you hit a cucco continually for about 5 to 6 times then it will
call for its friends to come and attack you. And they will probably kill you.
As an adult, ride into Lon Lon Ranch while riding Epona. Their are
three separate concrete walls one on the left, one on the right, and one at the south end. If you get a running start you can leap over each of the walls. You get to see a cool cut scene for each one.
While your looking at the pictures in the castle courtyard, if you
look through another window you will see a potted plant. Shoot the plant with your slingshot, and a man with throw a bomb out the window, and yell at you.
If you put on any of the Link's masks as a child and then go to pull the Master Sword from the Temple of Time, you will see the cutscene of Link pulling it, but this time he will be wearing the mask.
At the fishing pond, you can actually snag the fisherman's hat. It
may take awhile to get the aiming right, but you can get it. He gwets mad though and if you throw it into the pond it will cost you 50 rupies.
You can have a lot of fun with Gossip Stones. If you plant a bomb
by it, it will blast off into space. If you hit it with the Megaton
Hammer, it will flatten and then pop up. Use Din's Fire on it and it
will get tall. Play Zelda's Lullaby, Epona's Song, or Saria's Song, and it will give you fairies. Hit with your sword and it will tell you the time. Wear the Mask of Truth and talk to them and they will tell you some gossip. Hit it with a boomerang and it will giggle.
If you talk to the Fisherman after you get the sinking lure, and
choose, "Lets talk about something else" he will say something and then he will make the Sinking Lure legal to use.
That is just a few, for some reason it keeps giving me an error about too many images (I don't got no images) when I try to post the rest, maybe it will work this time.