This is the Foggy Swamp Tribe, one of the three Water Tribes in the Avatar World. Notice that they do not live at one of the poles; they are instead located in the Foggy Swamp which can be found at the Southwestern Earth Kingdom. The swamp itself is actually comprised of a single, massive tree.
The members of the Foggy Swamp Tribe are very attuned to their surroundings and have a keen understanding of the workings of the natural world. They follow the belief that all life is connected and is reliant on each other.
The village itself resembles the Southern Water Tribe in small ways. It is a relatively small village made up of huts, which are raised up by medium-length wooden poles that are meant to protect the buildings from floods. Near the center of the settlement lies a fire pit where the other tribesman eat.
The Foggy Swamp Tribe's waterbenders have a different style of bending from their polar cousins. While the Northern and Southern benders flow with the water, the Foggy Swamp Tribe's style seems more rigid and straight, possibly reflecting the stagnant nature of swamp water. This can especially be seen when they are propelling their boats using a much more straight-backed style than when Northern waterbenders move their gondolas. Due to the diversity and abundancy of flora in the swamp, the technique, plantbending, is often utilized by the waterbenders of Foggy Swamp Tribe.