The Plane of Water is the one of the elemental Planes. It contains Mote Fields for Motes of Water , Motes of Life and Motes of Air .
The ground consists of sandy beaches and Chasms are filled with ocean. The Water Plane's geography is characterised by long, sweeping coastlines and narrow trails of land.
It is not possible to build Fire structures on the Plane of Water.
The Water Plane contains Planar Portals to the Plane of Life and Plane of Air .
The Plane of Water could be the first plane you visit, and with the abundant supply of Motes of Water , it is a great place to get the hang of using Downpour Bastions to fight Entropy . Beyond this, you will likely be powering most of your Water factory through Mana Roots , as Wind Power is not available until you reach Adept tier in Air research. Without access to Motes of Earth for Reaching Grippers , you may need to take advantage of the two lanes of a Streamway to supply production structures. This will be a good opportunity to get a handle on using Whirling Grippers to fill multiple inputs at once.
In the late game, the main issue with building on the Water Plane is the inability to build Pyrolyzers for efficient Aether production. This can be worked around with Void Chests , but keep in mind that Void Chest: Pyre specifically cannot be built here.