Lures are handy little tools that help on your fishing journey. here are some lures:
Rocket, (Throws your line farther out.) Bomb, (Explodes when a fish goes for your bait for the first time. Can be exploded with the Detonator on command.) Light Bulb. (Catch a Bulb Fish and bring him back to you in one piece to unlock. the Light Bulb lights up the dark depths, and only lasts for a few minutes. It doesn't go out though when you take it back to shore.)
Hope i helped!