Elemental Plane of Water

An ocean without a surface, the Plane of Elemental Water had uniform pressure in all directions and felt like being several feet below the surface of a typical body of water in a Prime Material Plane, and indeed was illuminated with the same soft light of that depth. The salinity of the water varied depending on proximity to the Negative Energy plane—pure salt at the boundary with the quasi-elemental Plane of Salt, briny as you moved away, becoming pure and fresh in the middle, then getting warmer and more agitated as you approached the quasi-elemental Plane of Steam. Pockets of the other elements could be found here, but travelers that required air to breathe needed to make other arrangements. Inhabitants of this plane included water weirds, nereids, tritons, and the marid. Istishia made his home here in a realm called the Sea of Timelessness. The Murky Depths was the realm of Blibdoolpoolp. Shelluria was the realm of Eadro and Persana.

It is an ocean without a surface. It is domain of current and wave. It is a bottomless depth.

Fauna & Flora

It is difficult to determine what type of creatures were the most numerous in the Elemental Plane of Water but presumably the water elementals had the upper hand because they were manifestations of the plane itself. They could take on any shape their fluid bodies could form but they were extremely hard to see, similar to the effect of a robe of blending, and therefore were often described as blurry versions of Prime Material Plane animals and monsters typically of the aquatic variety. Water weirds, an intelligent life form that could possess water elementals, were also thought to be native to this plane.
All other peoples and creatures are interlopers or inadvertent immigrants by way of being sucked through an elemental vortex. Those that made a home here and thrived included some jann, the marids, the nereids, and the tritons. Besides almost every species of salt- and fresh-water marine life, there were reports of sightings or encounters with many creatures including aboleth,charonadaemons, black and bronze dragons, mephits of the ice, sea hags,[and will-o'-wisps.
Trade also brought many different races to the Elemental Plane of Water. Merchants that traded with the dao and the marids included aquatic elves, humans, kuo-toans, lizardfolk, locathah, mercanes, and sahuagin.

Type

Plain