Crystal Cave
located on the planet Ilum, this cave was similar in many respects to the Dark Side cave found on the planet Dagobah. The key difference was that, once a Jedi Padawan completed the test which was laid before him in the cave, the student could obtain an Ilum Crystal for use in their lightsaber. Often, the mouth of the cave was guarded by gorgodons which had climbed the mountain in search of food. Once inside, the Jedi student had to face any number of visions and voices, sometimes experiencing past events or facing their fears before reaching the crystal growths. Once a crystal was harvested, the student had to then meditate and construct their new lightsaber before emerging from the cave. Lining the walls of the cave's length were crued drawings left behind by Jedi students, giving a sort of history of the Jedi.