Seamine

Seamines are the seocond explosive item that is found in the game. After fishing past 300m, they will start to appear on the sides of your screen hovering over the rocks. If your hook touches a seamine, they will explode much like the Dynamite. You will lose your game, fish, and have to start over from the top.

If you purchased the Diamand Drill for $1.99, you are given the ability to drill through seamines, and you will not lose your game, as the mines will not explode. If you have the diamond drill and don't drill through the mine, you will lose.