Plane of Water

The field of water is water in all forms as well as some additional fluids. Its magic is linked deeply to healing and nature as well as powerful elemental spells. Evocation is therefore the most linked magic. 
The plane of water is a giant ball of water with some floating islands. These islands are made of earth or ice but are always untethered. Underneath the waves there are sometimes pockets of other elements; bubbles of air, free floating rocks, random selections of plants etc. These are often colonized by local creatures for their resources. 
The plane of water is probably the second most life infested plane after the Plane of Nature. Most of them are of course aquatic but there are also some terrestrial species on the islands. 
The plane of water has a ring and many moons which makes for a spectacular view of the sky. These moons are mostly very close to the planet causing them to rise and set very quickly dragging a tidal wave with them.

Interwoven planes

Nature, Air and Lightning are deeply connected to it. Fire is also weirdly connected to it. 

Associated damage types

Acid, Cold

Type

Planar Sphere/Grouping

Location under

Ethereal Plane