Water

Water is abundant blue liquid found in nearly any biome. Water forms the oceans on either side of a map. It is less abundant in a Desert and totally absent in The Underworld. It flows more freely than lava. Candles, Torches, and Flaming Arrows do not emit light underwater, but Glowsticks and some other light sources do. Torches are knocked free when water touches them.

Underground pools of water can be spotted by the glowing Jellyfish which spawn there. Water is only found down to a certain depth before being replaced by pools of lava and evaporates immediately if it enters the Underworld.

Upon submersion a player's breath meter will display how long they can remain underwater before they begin to take damage. By default, players aren't able to swim in water, only jump from the bottom.

Items Interacting With Water

 * Flippers the player can swim by jumping repeatedly from any point within the water.
 * Gills Potion allows the player to breath under water
 * Breathing Reed allows the player to breath while in shallow water and also increases the breath meter
 * Diving Helmet increases the breath meter
 * Diving Gear increases breath meter and allows swimming
 * Neptune's Shell allows the player to breath under water and allows swiming
 * Water Walking Potion allows the player to walk on the surface of water.
 * Pump and Bucket can move water

Mining Underwater
When mining in the underground, players will often encounter water. Players can avoid the water altogether by mining around it. Alternatively, the water can be removed by either pumping or draining the water into another cavity. Either dig an outlet at one edge or from the bottom of the pool.

To produce light underwater, remove a block a little way into the wall so that it forms an air pocket and place a torch there. Alternatively, Glowsticks may be used when digging underwater. They provide less light but can be thrown. These are especially useful when digging downward, because Glowsticks fall when the block beneath them is removed. This way, players can dig and light their way at the same time. If they are available, a Mining Helmet or an Orb of Light provide easy hands-free lighting.