The Legrue Corridor (ルグルー回廊, Rugurū Kairō?) is a cave dungeon in ALfheim Online. The dungeon prevents flight inside of it due to the lack of a source of sunlight or moonlight and it can not be flown over due to the mountains reaching above the altitude limit; thus, it is one of the few means to reach the town of Legrue and the Alne Plateau, at the center of which stands the World Tree.