Along the coastline, the land is very level and low, such that tides will flood many square kilometers during certain seasons. During this time, land-bound creatures will congregate in "islands" formed by debris caught about the bases of cageroot trees, and larger mounds of earth that remain more or less dry in the deluge (even though the water may only be a few inches deep in most of the areas affected).

On the western edge of Bromthen, where the capitol -- Bromthen City -- is located, Sea Serpent Nagas and amphibious Jingas can be found in abundance. The area is overseen by a governor, assisted by a small bureaucracy of officials. (Titles of various offices in Bromthen government can be misleading, often having no connection to what functions would be traditionally associated with such a title. Titles of offices tend to "mutate" over time.)