Water Bomb

A Water Bomb is an item found in the Wii and Gamecube video game The Legend of Zelda: Twilight Princess. Contrary to other bombs, this one can not only be used above ground, but can also be used in the water (as its name implies). Though the only way to use it underwater is if you have the Iron Boots equiped, meaning you can use them while freely swimming or by using a bow/water bomb combination while underwater. These bombs are required to get through the Zora's Domain section of the game, which is featured mostly underwater.