250px-Gungan sacred palace
Located in the swamp lands of Southern Naboo, the Gungan Sacred Lands was first mentioned in Star Wars Episode 1 "The Phantom Menace" when Jar Jar Binks mentioned where the Gungans go when they are in a time of need. It was here Padme' Amidala discuss peace with the Gungans. The gungans leave with an army towards the Grassy Plains while the Naboo try to retake Theed.  When the planet was retaken, it became unknown what happened to the Sacred Lands till the Galactic Civil War.