To get a better lure while fishing in Lake Hylia, go fishing at night. When the man at the counter gives you the rod, make a B-line to the log in the middle of the pond, and walk around on it. If you are lucky, you will find a sinking lure.(you can use it even though the sign says you can't, the guy won't notice) The fish like the lure you find much better than the one the guy at the counter gives you, and the fish are almost garunteed to bite every time you cast!