The collective swamps and marshes encompassing the majority of the surface of the planet Naboo were known as the Gungan Swamp.
The name "Gungan Swamp" originated from the Gungans who resided within its borders. This area was a multifaceted and thriving ancient ecosystem, composed of a variety of features: marshlands, tidal basins, inland seas, sloughs, rivers, grasslands, ponds, lakes, isolated mountains, cliffs, and crags. The ever-shifting network of waterways and channels that constituted the Gungan Swamp made navigation particularly challenging. A wide array of plant and animal life populated this environment, including sizable creatures like falumpasets, fambaas, ikopis, and kaadus.

The Gungan Swamp incorporated several distinct wetlands, namely the Lianorm Swamp, the Eastern swamps, the Lasay Swamp, and the Paitnnu Wetlands. The Lianorm Swamp, covering thirty-four square miles, was situated on the edge of Lake Paonga and at the base of the Gallo Mountains. The Lianorm Swamp is notable as the location of both the Gungan Sacred Place and the city of Otoh Gunga.
During the Invasion of Naboo in 32 BBY, the forces of the Trade Federation established a landing zone in the Lianorm Swamp. It was from this location that Jar Jar Binks guided Jedi Master Qui-Gon Jinn and his Padawan Obi-Wan Kenobi to Otoh Gunga. Following the Fall of Theed, Trade Federation troops were deployed throughout the Gungan Swamp in order to raid the villages of the Gungans. Later, Queen Padmé Amidala traveled to the Gungan Sacred Place to meet with Boss Rugor Nass, ultimately forging an alliance between the Gungans and the people of Naboo.