Elemental Isle is the home to many regions. Each pony in each region have adpated specifically for that region.
The Water Isle of Elemental Isle is a large section of sea barely surrounded by a strip of land near the border. It has several smaller islands, each with enough humidity in the air to support seaponies and merponies. Visitors need to consume Dryoff Berries before visiting, or the humidity will do them in.
There are three major locations in the Water Region. Hydro City, Trickle Down City, and Raindrop Village.