Outside the settled and industrialized sectors of Hutta are the swamps‒land occupied only by the desperate and foolhardy. Mutated animal life and crazed bog people are a threat to all ground transport; the Hutts normally travel by air, leaving their humanoid servants to move by foot or landspeeder.
Swampland covers nearly half of Hutta's surface, uninhabitable by galactic standard due to the level of pollutants in the water and air. This wasn't always the case‒before the Hutts migrated to the planet, most of what is now swampland was jungle and ocean. Over centuries of intentional planetary engineering and simple neglect, however, the jungles died and the oceans were drained and chemically converted.